TT helps...

Regards,

Luckylefty

Hey DP3,

What are the advantages to lowering the Rg but raising the differential?

I thought that lower RG balls tended to rev more on the back....yes/no?

Flip block on the top brings more weight to the surface of the ball thus raising the r.g and increasing the diff so theoretically, same cover stock you'll see more length with a fast response to friction. With a block on the bottom to lower the RG and increase the diff, you'll see more flare and a stronger more continuous move.

Think like this, same coverstock...

Fired Up (top flip block, higher RG, quick response on the back)
Vs.
Spitfire (bottom flip block, lower RG, rounder reaction shape but maybe 2-3 boards more aggressive overall due to starting up earlier.)

Hey DP3,

What are the advantages to lowering the Rg but raising the differential?

I thought that lower RG balls tended to rev more on the back....yes/no?

Lower RG balls rev earlier, depending on how strong the cover is, you can have a low reg high differential ball that is super strong on the back end (Agent, Marvel Pearl). You can also have low RG and high diff that's earlier and rounder (Special Agent, Marvel).

Lesson here is, cover stock prep and type is way more of a factor in the reaction shape of a ball than the core shape.  Core numbers, flip blocks, RG and differential are drillers tools that open up options for a wider range of reactions to enhance the ball's already natural characteristics.

This is why I don't subscribe to the theory of using the same layouts on every type of ball.  For instance, a ball like the tropical heat with a stacked 4x4 leverage drill may give you big angle down the lane because of the medium-high reg and the medium-medium/low diff.  It may be the perfect layout to maximize the reaction based on the maximum capabilities of the ball's numbers and cover strength.

Take that same layout and put it in a Marvel Pearl with a much stronger cover, lower rg, and higher diff, and you won't see that same sharp angle down the lane. You'll more likely see an earlier rounder shape. 

You may have some people that disagree with me, but to me I subscribe to the theory of drilling according to core numbers and not core shape/flip block/gimmick marketing.  Once you understand the correlation between what core numbers do and how layouts can enhance or weaken them, I can guarantee that you'll never drill a ball again that "doesn't do what you drilled it to do".

LL,

 In a real world of having thrown several Storm balls in the past, I have noticed a difference for me in the "flip block" placement.

 It always seemed that the balls with cores that had it placed toward the "top" gave me a longer, more backended look, while those with it placed toward the "bottom" tended to start earlier for me, and gave me a smoother look.

Quote from: Jesse James on April 11, 2013, 08:43:49 AM

Hey DP3,

What are the advantages to lowering the Rg but raising the differential?

I thought that lower RG balls tended to rev more on the back....yes/no?

Lower RG balls rev earlier, depending on how strong the cover is, you can have a low reg high differential ball that is super strong on the back end (Agent, Marvel Pearl). You can also have low RG and high diff that's earlier and rounder (Special Agent, Marvel).

Lesson here is, cover stock prep and type is way more of a factor in the reaction shape of a ball than the core shape.  Core numbers, flip blocks, RG and differential are drillers tools that open up options for a wider range of reactions to enhance the ball's already natural characteristics.

This is why I don't subscribe to the theory of using the same layouts on every type of ball.  For instance, a ball like the tropical heat with a stacked 4x4 leverage drill may give you big angle down the lane because of the medium-high reg and the medium-medium/low diff.  It may be the perfect layout to maximize the reaction based on the maximum capabilities of the ball's numbers and cover strength.

Take that same layout and put it in a Marvel Pearl with a much stronger cover, lower rg, and higher diff, and you won't see that same sharp angle down the lane. You'll more likely see an earlier rounder shape. 

You may have some people that disagree with me, but to me I subscribe to the theory of drilling according to core numbers and not core shape/flip block/gimmick marketing.  Once you understand the correlation between what core numbers do and how layouts can enhance or weaken them, I can guarantee that you'll never drill a ball again that "doesn't do what you drilled it to do".

Couldnt have said it better myself. too much emphasis is put on the ball and not the bowler, and trust me, it's really easy to do. For example to what DP3 is saying, in my area (as most), oil is a scarcity. I have 3 asyms that rarely see action because on THS, I see early and not very much. however on heavy sport patterns, the balls get sideways. Symmetricals roll better on the avg and heavier THS and an arsenal of  Tropical Heat's can more than surfice. So my advice, if a ball rolls well for you, do some research and buy balls that fit into that description.

LL,

 In a real world of having thrown several Storm balls in the past, I have noticed a difference for me in the "flip block" placement.

 It always seemed that the balls with cores that had it placed toward the "top" gave me a longer, more backended look, while those with it placed toward the "bottom" tended to start earlier for me, and gave me a smoother look.

When the flip block is on top, it gets "drilled into" with drillings that have the pin around the fingers. This alters the shape of the core more, and can vary the reaction shape very much so. As someone else noted earlier about the Fired Up and the Spitfire, you could really drill out the diff on the Fire Up because the flip block reduces its affect on gyration of the core because you are no lowering the "weight" of the flip block, hence more skid snap because less differential. With the block on the bottom like the SpitFire, you are not touching that flip block and the integrity of the block remains, and allows the core to do closer to what the intended design was for, allowing for more flare and thus your earlier smoother reaction.