Search found 221 matches

by DarkHorse
December 31st, 2018, 4:13 am
Forum: Layout Advice
Topic: Looking for layout suggestions
Replies: 23
Views: 1233

Re: Looking for layout suggestions

...As of now, i would rather a local PSO help me find my specs. As they have done this for a long time, and likely be able to get all the specs rather quickly. I'll go ahead and warn you - he may have no clue what you're talking about, and say it doesn't matter. Less than half of the Pro Shop guys ...
by DarkHorse
December 31st, 2018, 12:24 am
Forum: The Pro Shop
Topic: Benefits of IBPSIA courses
Replies: 11
Views: 949

Re: Benefits of IBPSIA courses

I've been to a Pro Shop training course where the IBPSIA accreditation was offered as an extra, but I declined since the instruction/information was the same. It was simply an extra test you could take at the conclusion, and receive accreditation if you passed. Focusing on the Fitting portion of the...
by DarkHorse
December 13th, 2018, 10:16 pm
Forum: The Pro Shop
Topic: Turbo switch grip drilling depth
Replies: 10
Views: 977

Re: Turbo switch grip drilling depth

When you look straight down the drilled thumb hole (inner), you will see if the hole is centered in the sleeve or not. If centered, the outer sleeve was drilled at the measured pitch. If it looks off-center, you should measure with a 0x0 inner. Milled ovals can throw this off a bit, since the "back"...
by DarkHorse
December 13th, 2018, 3:35 am
Forum: The Pro Shop
Topic: Turbo switch grip drilling depth
Replies: 10
Views: 977

Re: Turbo switch grip drilling depth

Ok, another quick question. How common is it for PSOs to drill the outer sleeve with 0,0 pitch and then do the thumb pitches on the insert? My sample set is small, but I've seen it done both ways. Thanks again, Steve I don't work in a shop anymore, but I'd say you definitely need to watch for this ...
by DarkHorse
December 11th, 2018, 8:13 pm
Forum: The Pro Shop
Topic: Turbo switch grip drilling depth
Replies: 10
Views: 977

Re: Turbo switch grip drilling depth

Outside edge of stop to bit corner - 2.78 Outer sleeve protrusion - 0.280 So, about what you came up with. The stop on the Turbo bit has a slight curve, so it may contact the ball a bit sooner. The small molding mark on the back of the sleeve always lines up at the coverstock for me. This should lea...
by DarkHorse
October 25th, 2018, 2:17 am
Forum: The Pro Shop
Topic: Stirring CS Hybrid (quick plug) with a bevel sander...
Replies: 19
Views: 1446

Re: Stirring CS Hybrid (quick plug) with a bevel sander...

This seems like it would create an enormous number of air bubbles thus effectively increasing the volume of the ball plug and lowering the cost. Has anyone tried this? I presume this would be legal, since the compound is approved. I smell what you're cooking, though that's a bit more extreme than w...
by DarkHorse
August 14th, 2018, 1:24 am
Forum: General Bowling
Topic: Kansas City bowling
Replies: 2
Views: 266

Re: Kansas City bowling

Kansas or Missouri side? I'm in Johnson County, KS, the SW portion of the metro area, so I know those houses better. For Kansas - up north near the racetrack (Kansas City, KS) is KC Bowl. Last I went the scoring units were older, but I think they've been updated. Haven't bowled there much, but it ha...
by DarkHorse
July 21st, 2018, 8:08 pm
Forum: Layout Advice
Topic: new layouts for the upcoming USBC 3oz. rule change
Replies: 13
Views: 1527

Re: new layouts for the upcoming USBC 3oz. rule change

I will apologize now for the rant that is to follow... I'm in near-total agreement with you. I guarantee we are losing angle/total hook; they're not going to change the rule to allow more. I guess USBC doesn't realize some manufacturers take after-drilling numbers into account when designing the co...
by DarkHorse
July 21st, 2018, 9:02 am
Forum: Layout Advice
Topic: new layouts for the upcoming USBC 3oz. rule change
Replies: 13
Views: 1527

Re: new layouts for the upcoming USBC 3oz. rule change

My thoughts on the new USBC report The math (from the report): • 1 ounce of side weight correlates (R2: 95.2) to Approximately 0.36 degrees of total angle change o +/- 1 ounce spec limits the effect to 0.72 degrees o +/- 3 ounce spec limits the effect to 2.16 degrees • 1 ounce of side weight correla...
by DarkHorse
July 6th, 2018, 3:06 am
Forum: Layout Advice
Topic: DIFFERENTIAL RATIO
Replies: 2
Views: 344

Re: DIFFERENTIAL RATIO

I'm no expert, but I know enough to be dangerous. 1) The total and intermediate differentials of an undrilled bowling ball will change depending upon how the ball is drilled, so the undrilled ratio will not be accurate. 2) YES, IFF you happen to have CAD software and know the mass properties of the ...
by DarkHorse
May 5th, 2017, 12:50 am
Forum: The Pro Shop
Topic: Switch Grips
Replies: 9
Views: 923

Re: Switch Grips

Could you clarify if the inner worked before you went to Reno?

Did you buy the complete inners (sleeve with slug), or did you buy the sleeves and add a different brand slug later?

I've noticed that different brand slugs can vary in size a bit.
by DarkHorse
May 4th, 2017, 2:25 am
Forum: The Pro Shop
Topic: Switch Grips
Replies: 9
Views: 923

Re: Switch Grips

Was the ball in Reno drilled there, or was it your ball and inner from home that suddenly became inseparable? If it was your prior equipment, there could have been some expansion/contraction issues that caused the outer sleeve to bulge inwards, locking up the inner. When your PSO drilled those 2 thi...
by DarkHorse
April 24th, 2017, 4:37 am
Forum: General Bowling
Topic: 800 Series
Replies: 13
Views: 1126

Re: 800 Series

I currently bowl weekly leagues in 2 houses. I've been bowling at my "old" house for 5 years, and there was only one 800 this year, but it was the first in 3-4 years. Rare occurrence in that building. 2 big leagues: 5-person/14 teams, and 4-person/20 teams. I only know of 3 guys who've averaged 220+...
by DarkHorse
April 11th, 2017, 2:52 am
Forum: Ball Talk
Topic: Using Abrasion pads
Replies: 14
Views: 1175

Re: Using Abrasion pads

You should "clean" a bowling ball with a microfiber towel and some kind of cleaning chemical. Considering it's an Ebonite product (Ebonite manufactures Track products), I'd go with a Powerhouse brand cleaner (again, made by Ebonite). If the ball is dirty enough, it will clog the sanding pad quicker ...
by DarkHorse
March 19th, 2017, 1:03 am
Forum: Ball Talk
Topic: retaining tilt and information from radical
Replies: 9
Views: 965

Re: retaining tilt and information from radical

gunso wrote:
25. Minute. Clearly states that syms retain tilt longer
I found it, and I see what you're saying.
Even said it again at the end during Q&A session.
by DarkHorse
March 18th, 2017, 11:44 pm
Forum: Ball Talk
Topic: retaining tilt and information from radical
Replies: 9
Views: 965

Re: retaining tilt and information from radical

http://forum.bowlingchat.net/viewtopic.php?p=23272#p23272" onclick="window.open(this.href);return false; I've been doing the practical aspects of measuring axis tilts and migration paths for more than a decade. I've probably done more of it than any other single human being. The speed of transition ...
by DarkHorse
February 17th, 2017, 4:33 am
Forum: General Bowling
Topic: dexter vs 3g
Replies: 8
Views: 791

Re: dexter vs 3g

If you cut the triangle piece of rubber off the heal you can use your Dexter heels and soles on the 3G shoes. Saves having to buy new ones. I have had no problems with doing this. I was able to pry mine out with a small screwdriver. I switched to the Tour Ultra from the SST 6 LZ about 3 years ago, ...
by DarkHorse
February 11th, 2017, 4:24 am
Forum: Ball Talk
Topic: Best Fragrance / Fragrance problems in bowling balls
Replies: 17
Views: 1183

Re: Best Fragrance / Fragrance problems in bowling balls

I have a Dark Thunder (2007, maybe?) that still smells like Blackberries. My Hy-road has practically no scent, but it's had about 15 holes drilled. I wonder if heat from plugging and drilling wears out the scent. Or maybe it's just missing 20% of the factory cover :lol: I've heard that the DV8 Vanda...
by DarkHorse
February 11th, 2017, 4:05 am
Forum: General Bowling
Topic: Hard lesson probably still not learned, not sure what happen
Replies: 18
Views: 722

Re: Hard lesson probably still not learned, not sure what ha

I probably shouldn't get involved here, but this just seems bizarre to me. ... (missed the 4 pin by an inch to the left, only miss the entire night. even picked up 1 2 10 split ). FYI, that's called a washout, not a split. Can't have a split with the headpin in place. ... I don't think it is possibl...
by DarkHorse
February 9th, 2017, 1:28 am
Forum: General Bowling
Topic: Rule Question
Replies: 9
Views: 527

Re: Rule Question

As noted, as long as he only used his right hand ("used" loosely defined as inserting fingers into the ball), how long his left hand remains on the ball during the approach doesn't matter. It is more accurately described as a "no-thumb" delivery, since most of us place 2 hands on the ball for a port...