We all know, cg or mass bias out usually creates more midlane.  CG or MB stacked creates less.  Cg back towards thegrip center(correction) or  MB or under the thumb or in the track seems to create what used to be called lope or wait before the ball made it's move!

What is the relavance of this not as often used drilling in today's game?  Especially for bowlers with plenty of side roll.  Lope is a part of their roll already.

I am bowling in a center where drillings that create midlane just force me very deep.  I have 60 to 70 degree side roll, can cg back towards the grip center or MB under the Thumb work for me.  Traditionally they haven't but I think that certain conditions make it more likely it would work for me. 

Drilling gurus?

REgards,

Luckylefty

"Cg back towards the MB or under the thumb seems to create what used to be called lope or wait before the ball made it's move!"

That makes no sense to me but I'm sure it will to someone.

Not sure about cg under the thumb as you listed but the cg location is really only relative in terms of static weight and if your going to need a weight hole to make the ball USBC legal. Or if your wanting to put a weight hole in a specific location to effect the balls reaction. The cg isn't always inline with the pin and mb, so where the cg ends up in the drill pattern isn't relative unless for static weight purposes as stated.

Now in terms of putting the mb near, or below the thumb it just delays the reaction of the ball more. It doesn't kill the reaction by any means. You can even move the mb to the side of the ball you track on for delaying and taming the balls reaction.

For Impending Doom.

Did you see much different reaction when the pin was next to ring finger or up with all of those label drilled balls?

For the other posters...

I have found lately at least one company that is totally confused about CG when giving their drilling Instructions...  900 Global.  In their comments on their drillsheets which I picked up from a bounty drill sheet(included symmetric also).  They mention the CG position as earliest(3 inches to PAP), early(4 inches to PAP) and latest(5 inches from the PAP).

What do they know!?

REgards,

Luckylefty

http://www.900global.com/images/pdf/900globaldrillsheet.pdf

I looked through the drill sheet for the Bounty shown above and it never gives any specific measurements for the CG, it does give specific measurements for the PIN to PAP along with a general area the CG should end up in.

For Impending Doom.

Did you see much different reaction when the pin was next to ring finger or up with all of those label drilled balls?

For the other posters...

I have found lately at least one company that is totally confused about CG when giving their drilling Instructions...  900 Global.  In their comments on their drillsheets which I picked up from a bounty drill sheet(included symmetric also).  They mention the CG position as earliest(3 inches to PAP), early(4 inches to PAP) and latest(5 inches from the PAP).

What do they know!?

REgards,

Luckylefty

All the pin placement did was dictate the amount of flare. I've gone anywhere from 1 inch pin to pap (Track Money) to 2 inch pin to pap (Predator, Blue Heat, TNT) to 3-3/8 pin to pap (Afterburner, Tomahawk) to 4 inch pin to pap (Threat) to 5 inch pin to pap (Heat remake, old Tidal Wave) I usually used holes on the shorter pin to pap, to make them even smoother. My Threat, drilled 60x4x20 was too sideways off the dry without a hole. I took it to .5 negative, and it became a lot more controllable. I didn't normally use big holes, but smaller deeper holes on my pap.

Obviously, the 5 inch pin to pap had more jump to it at the back, but it was still super smooth. It's my belief that you should have a least one ball drilled to have tight flare, so you can feed it to the dry without it going nuts. The ball motion of the new AMF Cobra is similar to that kind of look.

I'm sorry, I have the actual Printed version...printed in Bounty release time frame.  It actually has the words TM Bounty on the front page where it gives the symmetrical layouts.

Regards,

Luckylefty
PS I note your Brunswick emblem on your sign on, they are the company pushing the hardest on CG doesn't matter, aren't they?

Yes they have posted videos showing the cg location and the effects on the ball being thrown by a throw bot. That has nothing to do with what I've read and tried to translate from your post. I will just assume that your sheet for the Bounty has the listed information that Global doesn't list on the sheet from their website. As mentioned already, the cg location and the MB location are very important in the layout of the ball and its reaction. The end results of the cg are important because that weight has to be accounted for when making the ball legal for static weight purposes and also for adding weight holes to specific locations to change the dynamics of the core for a desired reaction. Still it would appear no current drill sheets list anything about the CG being a certain distance from the bowlers PAP. Most give general areas the CG should end up on a first quality ball.

When reading your original post the comments/assumptions you make I've not read else where. If you take what is written below and subtract the CG then it would be what is generally seen reaction wise by most bowlers.

"We all know, cg or mass bias out usually creates more midlane.  CG or MB stacked creates less.  Cg back towards the MB or under the thumb seems to create what used to be called lope or wait before the ball made it's move!"

"....can cg back towards the grip center or MB under the Thumb work for me."

Back in the day the thoughts were lots of finger weight caused the ball to have more length and lots of thumb weight cause the ball to roll sooner. Since USBC limits you to less then an once either way I'm not sure it is really true.  That is to say, take two identical balls with two identical layouts. One having one once finger weight and one having one once thumb weight and using a machine to throw the ball and see if there is any difference.

For me, my only concern when drilling a symmetric ball and the location of the cg is if I'm wanting to have the option to add a weight hole in a specific area to increase the dynamics of the ball.(internal differential)  Between the large hole drilled for the thumb and the weight hole you are taking out very large pieces of the ball and some(in most cases) parts of the balls core.

Generally I'm looking to have a weight hole at least 3.5" deep for that reason.

Leaving for work and will read over later.