Search found 221 matches

by DarkHorse
March 29th, 2016, 4:02 am
Forum: Ball Talk
Topic: Spare ball preferences
Replies: 14
Views: 1265

Re: Spare ball preferences

I use a Storm Pitch Red (pearlized urethane) as my spare ball. I got it used, and drilled my grip into the same layout - Pin over bridge, CG out for about 1/2 side weight. Same weight as my strike ball. Last Wednesday, I was 12-for-12 on ten pins (don't judge me - I moved and made adjustments, but j...
by DarkHorse
March 29th, 2016, 3:45 am
Forum: General Bowling
Topic: 300 bowling ring, go all out or get the free one.
Replies: 16
Views: 1160

Re: 300 bowling ring, go all out or get the free one.

Not to steal your thunder, but I just received my first 300 ring this past February. It took about 1 month to get to my mailbox, but that was for the completely free version. "Worth it" is a fairly subjective and personal matter. I don't wear jewelry of any kind, so to me it wasn't worth the money, ...
by DarkHorse
March 17th, 2016, 6:52 pm
Forum: General Discussion
Topic: saturated shot
Replies: 25
Views: 1765

Re: saturated shot

Or the outside weather conditions changed, which affected how the HVAC was performing, which affected the topography of the lanes. (Whether the lanes depress towards the pocket or towards the gutters) Last week my area had our 1st humid day of the year, and anyone swinging the ball inside-out strugg...
by DarkHorse
February 23rd, 2016, 1:02 am
Forum: Layout Advice
Topic: No Thumb Ball Static Weight
Replies: 10
Views: 584

Re: No Thumb Ball Static Weight

Here is my take....this no thumb bowler gets a ball from someone and likely does nothing to it. My experience is that "normal" players are not looking for a ball with short pins and low top weight. I would think that average would be pins 3-4" and top weight near 3 oz. The ball he was throwing was ...
by DarkHorse
February 7th, 2016, 6:47 am
Forum: Layout Advice
Topic: confused
Replies: 12
Views: 705

Re: confused

I was confused before. ... The undrilled side weight does affect the result. My first guinea pig, IQ Pearl has quite some undrilled side weight . Even with 80 -5-40, it left a bit more than 1 oz side weight. A very tiny balance hole is drilled to make it legal (7/8 oz). My guess is the final dual a...
by DarkHorse
February 7th, 2016, 6:40 am
Forum: General Discussion
Topic: What pitch values actually means?
Replies: 32
Views: 2898

Re: What pitch values actually means?

Ahaa. It is measured from center of ball. Makes sense. ... If I did my calculations right angle for 1/8 pitch can be calculated like this (bowling ball maximum diameter 8,595" is used): 8,595 / 2 cos (----------------) =~ 0.999* =~ 1* 1/8 ... Wow, I haven't done trig in a long time. I think I see s...
by DarkHorse
February 7th, 2016, 2:13 am
Forum: General Discussion
Topic: What pitch values actually means?
Replies: 32
Views: 2898

Re: What pitch values actually means?

I'm planning to start drill my own bowling balls using general pillar drill machine. On most these machines have possibility to change table angle but how I can calculate right angle (number of degrees) example for 1/8 inch lateral pitch? I probably are able to generate needed formulas for calculat...
by DarkHorse
February 7th, 2016, 2:00 am
Forum: Layout Advice
Topic: confused
Replies: 12
Views: 705

Re: confused

O.K., my dense head still doesn't grasp. I understand placing CG near center for BH. So lets do a 4 example. I get a SYM ball and it has drilling instructions with it. So 4 instance,I select a 60x4x30 drilling from the manufactures list....... Now,with modern thoughts(XX) when I have ball drilled, ...
by DarkHorse
January 31st, 2016, 3:02 am
Forum: General Discussion
Topic: Why do I get more speed with a heavier ball?
Replies: 5
Views: 685

Re: Why do I get more speed with a heavier ball?

An object in motion tends to stay in motion. -Sit Isaac Newton It may take more effort to get a heavier ball up to the speed of a lighter ball, but without delving into the specifics of your release, a heavier object will retain more speed than a lighter object under the same conditions (in this cas...
by DarkHorse
January 31st, 2016, 2:48 am
Forum: Ball Talk
Topic: Asym / sym ball choice of low track / high track bowler
Replies: 17
Views: 1718

Re: Asym / sym ball choice of low track / high track bowler

From http://forum.bowlingchat.net/viewtopic.php?p=72280#p72280" onclick="window.open(this.href);return false; Low tilt bowlers usually use more symmetricals than asymmetricals because symmetricals have longer hook zones delaying the ball entering the roll phase. Therefore, it gives them more continu...
by DarkHorse
January 12th, 2016, 3:15 am
Forum: The Pro Shop
Topic: Pro Shop Skills and Training
Replies: 10
Views: 1196

Re: Pro Shop Skills and Training

I see where you're going with this, but you are making some assumptions based on idealism, not reality. I live in Kansas, less than 1 hour from Jayhawk in Lawrence. Few bowlers I've met in this area know what IBPSIA is; the assumption is that if a person is behind the counter, he knows what he is do...
by DarkHorse
December 20th, 2015, 1:18 am
Forum: The Pro Shop
Topic: WIKI Fitting Help
Replies: 13
Views: 873

Re: WIKI Fitting Help

I'm concerned going from 1/8 Reverse to 0? I assume you're referring to the thumb pitch change. As you can see from the Morich/Wiki instructions, Linear Thumb pitch is related to span length and joint flexibility; if you shorten your span you will need to adjust the pitch to maintain a proper gripp...
by DarkHorse
November 24th, 2015, 10:42 pm
Forum: The Pro Shop
Topic: Thumb slug adjustment?
Replies: 2
Views: 491

Re: Thumb slug adjustment?

I have a flat-tip screwdriver with the tip bent into a hook for issues like this. But as John said, your driller should fix this. If you do what I think you're saying, when you pull the slug up it will force the glue out of the hole on to the surface of the ball. And you will likely pull the slug to...
by DarkHorse
November 24th, 2015, 10:36 pm
Forum: Ball Talk
Topic: Pro CG/Pro Pin question
Replies: 3
Views: 527

Re: Pro CG/Pro Pin question

Pro Pin typically has a Pin Out distance greater than 5 inches. These can be very useful for certain bowlers trying to get a specific layout - like a guy with a 5" span wanting a Double Thumb layout. The longer Pin Out gets the CG further bellow the grip midline, so you can have some thumb weight wi...
by DarkHorse
October 17th, 2015, 2:16 am
Forum: The Pro Shop
Topic: Drilling Thumb near Mass Bias
Replies: 9
Views: 1023

Re: Drilling Thumb near Mass Bias

Did yours crack in a circular pattern AROUND the thumbhole, or is it a linear crack that radiates AWAY FROM the thumbhole? In my experience drilling a thumb near the PSA marker would not cause a ball to crack. I think that balls crack AROUND a drilled hole due to a dull bit and too much pressure, cr...
by DarkHorse
October 13th, 2015, 12:41 am
Forum: The Pro Shop
Topic: Axis tilt - What you see is what you get with a tape on PAP?
Replies: 5
Views: 566

Re: Axis tilt - What you see is what you get with a tape on

I can try to measure up my track size, but I don't have a quarter scale or anything else except regular bowling alley equipment for measuring non-bowling stuff. Measure Track Diameter without a Quarter-Scale You will need: grease pencil, permanent marker string, shoelace, etc. at least 14" long rul...
by DarkHorse
October 7th, 2015, 4:20 am
Forum: The Pro Shop
Topic: What ball jig is this? (Added pic)
Replies: 8
Views: 865

Re: What ball jig is this? (Added pic)

I agree with you that it just looks like an older Jayhawk Professional model, and my long-winded instructions above should work for you. The only differences I see are the lack of the Red Knob for Left-to-Right alignment and there are two socket cap screws for the locking blocks on the Lateral Pitch...
by DarkHorse
October 6th, 2015, 10:34 pm
Forum: The Pro Shop
Topic: Taping thumb slug when thumb changes a lot in size
Replies: 7
Views: 438

Re: Taping thumb slug when thumb changes a lot in size

You may need an oval thumbhole.

Or, try putting some smooth tape along the back of the thumbhole. That way instead of 4 pieces in front causing discomfort, you can use 2 and 2, or whatever number works for you.
by DarkHorse
October 6th, 2015, 12:51 am
Forum: The Pro Shop
Topic: What ball jig is this? (Added pic)
Replies: 8
Views: 865

Re: What ball jig is this?

It's closer to this, but looks older. And it's not on a mill, just an older Enco Drill Press. http://jayhawkbowling.com/Products/Pro-Jig.html" onclick="window.open(this.href);return false; I'll post pictures on Wednesday. We use one of these machines in our shop. Left/Right Pitch is adjusted by the...
by DarkHorse
September 28th, 2015, 8:33 pm
Forum: Ball Talk
Topic: Damaged ring finger. What are my options?
Replies: 13
Views: 2609

Re: Damaged ring finger. What are my options?

A "performance fit" is usually for somebody that has a proper fit but wants to induce a specific roll, such as increasing or decreasing Axis Tilt or Rotation. It takes into account having a proper "base fit," which I would consider to be a pain-free fit by itself. Depending on the changes in your fl...