BallReviews

General Category => Drilling & Layouts => Topic started by: 2handedrook12 on May 26, 2015, 12:00:37 PM

Title: P4 Garfield Hole
Post by: 2handedrook12 on May 26, 2015, 12:00:37 PM

I can't remember which core can't use the P4 gradient hole. I am thinking it is a symmetrical core because they don't have a mass bias. I am looking at the options of maximizing a balls hook potential (not back end ).

Title: Re: P4 Garfield Hole
Post by: Impending Doom on May 26, 2015, 12:39:50 PM

LOL@ Garfield hole

DYAC!

Title: Re: P4 Garfield Hole
Post by: JohnP on May 26, 2015, 03:37:50 PM

You're right, with symmetrical balls the MB ends up very near the thumb hole, so it's impossible to use a P4 hole.  The double thumb layout will probably be what you're looking for.  --  JohnP

Title: Re: P4 Garfield Hole
Post by: J_w73 on May 26, 2015, 04:26:06 PM

Any hole 6 3/4 from the pin  in the lower right quadrant of the ball will increase the flare.  Depending where you put the hole will change how the ball responds to friction.   If you are looking for an earlier read and hook then a surface change might be a better choice if the ball will not burn up and roll out from the increased friction.

What ball are you trying to adjust?  What layout is on it now?

Title: Re: P4 Garfield Hole
Post by: kidlost2000 on May 26, 2015, 05:16:17 PM

Maximize hook potential.

Lot of ways that can go depending on the ball,  the bowler,  and the lane condition.

Title: Re: P4 Garfield Hole
Post by: Impending Doom on May 26, 2015, 05:26:44 PM

If you're talking max flare for a symmetrical, pin 3 3/8 inches from pap, place cg where a large hole can be placed 6 3/4 inches from pin, 1 1/8 inches by as deep as the drill will go.