Mr Tang has a Very unique PAP location. It is quite close to his grip with an up co-ordinate, something like over 3" and up 1" I have tried many different layouts but have yet to try anything like this. First layout - 4.5x3x2 is close to 60-4-30 dual angles when measured to the thumb Second layout -...

Estimated rev rate only gets estimated layouts. Also needed is the angle of rotation. Will use 45* med rotation for estimates For the estimate, 1:1 ratio and 100* totals to start your layouts from for house shots. Estimated Asymmetrical Layouts Totally Strong .......... 50-5-30 Midlane ................

I am curious to know what bowler and what ball.

It is all dependent on the surface prep and actual lane condition. The most dull one will be the earliest.
With Symmetrical balls you don't get the option of the core starting it up any earlier with layouts.

jobowl wrote: ↑

December 18th, 2020, 3:32 am

What does the 4 1/2 inch depth do ?

It will raise the differential and get a little bit of flare. .022 differential doesn't flare very much.

jobowl wrote: ↑

December 18th, 2020, 3:30 am

How about the Phaze 2

Phase 2 ............. 80-5 1/4-35

I like the Pin in the Ring finger Control Layout for the IQ Tour.

Pitch Black ..........xx-4-30 and drill the thumb to the 4 1/2" depth limit.

That is why you can't just go by track location when determining a layout. It can be deceiving. Generally the closer the PAP is to the grip the further from the grip the initial track will be. Just think how far your track would be from the grip if you had 25* of tilt. It would almost be on the bott...

My first Attachment was modeled with Negative 27* of tilt.

It is what is call the "Over Rolled Full Roller"

This is uncharted territory for me. I've never tried to drill a ball for such a roll.
Given the opportunity I would try something like this...

Does his initial track look like this?

Is his PAP location measured from the center of the Bridge?

I'd like to see the technique of you throwing the ball. Mega... Would slow motion video focused on the hand at release be a good way to look at this? I know in the coaches section they want actual speed video to be able to evaluate timing and tempo, but I'm thinking you want to see how the ball is ...

Disclaimer, I am not a fitter. You didn't mention Why you are changing your grip other than the flexibility of your middle finger. I have gone through several grip changes over the years. Most were small adjustments. I did make one large adjustment back before the turn of the century, going from a s...

Fitted golf clubs help you hit the ball better. Fitted layouts will help your ball hit better. I keep using golf analogies because I see golf thriving, The simulators are attracting what could be bowlers. Places like Top Golf for example. I'm predicting there will be more places to golf simulate tha...

I would recommend a 1:1 ratio Asymmetrical drilling as a middle of the spectrum if you are going to manipulate your release and have all the pitches in the bullpen. This is assuming you have the ability to manipulate Tilt. Not an easy skill to master. I was a pitcher in my hardball younger days. I l...

Only when watching the pros on tv. What ever that system is. Bowling centers around me are not putting any technology improvements into the lanes. They seem to just want to sit back and try to make money on old outdated machines and software. I would like to see more ideas like this become part of b...

http://wiki.bowlingchat.net/wiki/images/archive/6/69/20100418165137%2101DualAngleSweetSpot.pdf Cut and pasted from the Sweet Spot Guide in the Wiki page 2 "Retaining Axis Rotation & Axis Tilt To retain Axis Rotation and Axis Tilt in SYMMETRICAL equipment, we would tend towards longer pinpap (> 4") d...

Trident Nemesis 50x4x20 (very clean but doesn't match up well unless the lane has alot of outside friction) An Angular ball with a Strong Angular layout on it. Doesn't surprise me that this ball is inconsistent for you. I would put a dull surface on it and keep it for the long oil conditions. Axiom...

Hi Eric I'd always been told that one's PAP was off the hand. Ideally it would be measured in the air, but that's not possible so it's measured as soon as the ball leaves the hand and in the oil so nothing affects it. Wouldn't the core MOVE the PAP away from what it is? I mean, isn't the PAP the "b...

PAP location will change based on the strength of the core/layout choice. Low flare set-ups will produce PAP locations that are further away from the grip center. High flare set-ups will bring the PAP closer to the grip center. Strong core/layouts flare in the air. The initial oil ring is where the ...

Hi Eric - wouldn't him throwing it backup mean he should have a lefty drilling? My wife throws backup and getting her balls drilled lefty The conventional lefty layouts would be a first thought. But, with his initial track basically through the grip center the conventional layout drawn from his PAP...