Search found 410 matches

by deanchamp
December 9th, 2019, 10:32 am
Forum: Layout Advice
Topic: Symm Ball Layout
Replies: 5
Views: 760

Symm Ball Layout

This is a pic from the 2019 Silver manual. I must have missed something in my education about the importance of the CG placement!
Symm Ball.jpg
by deanchamp
November 21st, 2019, 11:20 am
Forum: Announcements
Topic: BowlingChat Upgrade to PHP7.2/phpBB 3.2 - *COMPLETED*
Replies: 26
Views: 6086

Re: Change is coming... BowlingChat Upgrade to PHP7.2/phpBB

I hope it all goes smoothly Eric
by deanchamp
November 14th, 2019, 12:10 pm
Forum: General Bowling
Topic: Advice on reading lane transition faster
Replies: 8
Views: 1252

Re: Advice on reading lane transition faster

Like Stacy said, the advice is to read and understand what you have already been provided with, like this: http://forum.bowlingchat.net/viewtopic.php?p=113553#p113553" onclick="window.open(this.href);return false; If you want to be stuck in a hamster wheel chasing the same answers you have already b...
by deanchamp
November 9th, 2019, 8:08 am
Forum: General Bowling
Topic: Twister Pins?
Replies: 3
Views: 581

Re: Twister Pins?

I’ve bowled on them in Wellington, and I left more 4-9s from flush hits than I’ve ever seen. Better to hit light and get them bouncing around.
by deanchamp
November 4th, 2019, 3:05 am
Forum: General Bowling
Topic: help identifying ball roll
Replies: 13
Views: 1242

Re: help identifying ball roll

2:28-2:35 Kyle Sherman is what I am talking about. Proper ball roll I thought consisted of 3 stages. Skid, hook and then roll. I can't identify all the stages with that kind of roll, something is missing. Yes I was replying about Sherman. With that sort of roll he is shortening the hook phase to co...
by deanchamp
November 4th, 2019, 3:01 am
Forum: Layout Advice
Topic: Medium Tilt Low Rotation Question
Replies: 5
Views: 643

Re: Medium Tilt Low Rotation Question

Could be a pattern like Easy Street 38' (see attached). With dual angle layouts, the ratio of drill to VAL angle is determined by the bowlers tilt (for asymm balls), and rev/ speed dominance influences the sum of angles, so if those stats are off their hand, you'd be looking at a benchmark ratio of ...
by deanchamp
November 3rd, 2019, 1:12 am
Forum: Layout Advice
Topic: Medium Tilt Low Rotation Question
Replies: 5
Views: 643

Re: Medium Tilt Low Rotation Question

Rev dominant with low rotation, would need to stay in the oil to get the ball down the lane, or use weaker covers and control/ low flare layouts if bowling in the friction.
by deanchamp
November 3rd, 2019, 12:33 am
Forum: General Bowling
Topic: help identifying ball roll
Replies: 13
Views: 1242

Re: help identifying ball roll

He could be going straight under the back of the ball to get it to roll like that also. So the question is, if the ball is rolling like that, is that proper ball roll? It looks like it is rolling almost end over end. Bowling quick with very little rotation to play straight and control the backend. ...
by deanchamp
October 23rd, 2019, 10:37 am
Forum: Ball Talk
Topic: High diff. core/low flare layout vs. med diff/regular layout
Replies: 15
Views: 1517

Re: High diff. core/low flare layout vs. med diff/regular la

Core numbers after drilling: (A) RG:2.50, Diff:0.038, Int Diff:0.008 (B) RG:2.52, Diff:0.037, Int Diff:0.018 As you can see, the drilled core numbers aren't exactly the same, but are fairly close. The RG and Diffs are close, but one ball is now an asymm core (B) and the other is essentially a symm ...
by deanchamp
October 19th, 2019, 3:22 am
Forum: Ball Talk
Topic: High diff. core/low flare layout vs. med diff/regular layout
Replies: 15
Views: 1517

Re: High diff. core/low flare layout vs. med diff/regular la

44boyd wrote:More flare equals side to side movement
More flare will shorten the hook zone. Less flare will have a longer hook zone and cover more boards.

Surface and rotation play a big part in this as well.
by deanchamp
October 12th, 2019, 1:03 am
Forum: Layout Advice
Topic: Effective Ball Motion Without a Hole! - Full Seminar
Replies: 9
Views: 1005

Re: Effective Ball Motion Without a Hole! - Full Seminar

2. Pin-Down layouts have a place, but never on SYM balls. Not sure why this is mentioned when the new Closer symm ball has 2 x pin down layouts on the Radical drilling sheet. Smooth Hook: Pin Under 85°x 4" x 85° Length with Control: Pin Under 80°x 5 1/4" x 80° Which is assuming pin down and pin unde...
by deanchamp
September 23rd, 2019, 11:23 am
Forum: General Bowling
Topic: Adjusting before the bowling ball goes high and splits
Replies: 10
Views: 1062

Re: Adjusting before the bowling ball goes high and splits

The response was for a right hander.
by deanchamp
September 22nd, 2019, 3:15 am
Forum: General Bowling
Topic: Adjusting before the bowling ball goes high and splits
Replies: 10
Views: 1062

Re: Adjusting before the bowling ball goes high and splits

Is there any other way of telling if the ball is about to jump or take off other then it hitting high the last shot? It is tough for me to see if it is a little high or not with bad eyes. I can tell if it is obviously high but I haven't seen one of those lately at all. If you are hitting flush then...
by deanchamp
July 10th, 2019, 1:30 pm
Forum: General Bowling
Topic: PAP position up-down
Replies: 4
Views: 527

Re: PAP position up-down

I was just thinking about a subject I've thought about considerably over the years. Is it better to have the PAP above or below the center of grip for pin carry? Does one or the other, have a pin carry advantage? Or, does the weight block dictate the track in relation to fingers/thumb? From Mo: "Th...
by deanchamp
May 19th, 2019, 12:43 pm
Forum: Community Coaching
Topic: Resignation
Replies: 6
Views: 1165

Re: Resignation

Thanks mate for your generosity and openness. You've been an inspiration for me.

Dean
by deanchamp
May 8th, 2019, 10:56 am
Forum: Layout Advice
Topic: RG of the PAP
Replies: 22
Views: 1819

Re: RG of the PAP

"linear velocity" is ball speed. PAP migration along an RG plane is precession. If linear velocity is ball speed, what do you make of Mo's statement: "The linear velocity will decrease as it approaches the minor axis (pin to spin line) and start to increase as it passes the minor axis. It will achi...
by deanchamp
May 8th, 2019, 2:40 am
Forum: Layout Advice
Topic: RG of the PAP
Replies: 22
Views: 1819

Re: RG of the PAP

Also, let's consider that during the Roll phase, as has been stated here before, 1" of ball surface equals 1" of lane surface traveled. Bowling ball circumference = 27" = 2.25' 1 rpm - 2.25'/minute 1 mph - 5280'/60 minute = 88'/min Consider a hypothetical "Matched" bowler of 18 mph and 350 rpms off...
by deanchamp
May 7th, 2019, 11:21 pm
Forum: Layout Advice
Topic: RG of the PAP
Replies: 22
Views: 1819

Re: RG of the PAP

A flat spot on an otherwise circular RG plane is essentially a shortcut from one point (A) on a circle to another (B), so the track would flare farther/faster as the PAP migrates through that area if the rate of precession remains constant. Which would be the case if the RG of the PAP remains const...
by deanchamp
May 7th, 2019, 4:52 am
Forum: Layout Advice
Topic: RG of the PAP
Replies: 22
Views: 1819

Re: RG of the PAP

It is my understanding that the asymmetry at the PSA flattens the ellipse of the RG plane (axis migration path) in the area of the pin-to-spin line, making the path less circular, and therefore shorter from point A to point B. And how does this equate to a higher rev rate? And where is point A to p...
by deanchamp
May 6th, 2019, 2:38 am
Forum: Layout Advice
Topic: RG of the PAP
Replies: 22
Views: 1819

Re: RG of the PAP

It does.

So is friction adding energy to the system or taking it away?