Layout is pin under ring finger 4” from my pap; cg is shifted out with a balance hole.

I am a left handed tweener with a 325 rev rate.

Having the combination of solid coverstock and symmetrical weigh block has always been one of my favorite ball motions. The rumble definitely continues this trend for me. It clears the front and still has enough energy to get through the pins. I have also taken the surface down to as low as 500 grit, and the coverstock can definitely handle it. I can use the ball on house shot conditions or tournament play.

For the price point, can’t beat the value.

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Jeff Mersch
Roto Grip Amateur Staff
PBA Member