This is what I have tried so far with limited success. ego drilled 12'oclock pin high and above and between fingers 5-1/2x5-1/2 almost what i need but it rolls a little to early but is smooth in transition but strong still, I polished it and it became to flippy, freak out 5-1/2x3 long and to strong on the back. exception 4x5-1/2 just to strong all the way around even with polish. scout 4x5-1/2 long and to strong on the back. vertigo 5-1/2x4 pin below fingers haha dont ask this is the ball i shot 800 with at the other house with a bit more oil although tubed and floating backends it works well there but just to early at the short oil center. Ok I have alot of balls laying around and can probably try a few test drills on, from what i remember they are inferno 4" pin,silver streak particle 4-5" pin, viscous reactive pearl 3" pin, vendetta particle pearl 2-3"pin, TPc shooter 3-4"pin, storm recharge 3-4"pin, Stinger 2 piece 3" pin, beast pearl mica pin in, triton elite 5"pin and my gold rhino cracked so i cant use it.
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IN SEARCH OF THE PERFECT TWINS