Okay I usually don't add much input here but it's ask over and over again. I recently drilled a NM with the #1 layout. My ball driller and I had to pass up on many NM with the correct pin, CG and hart for the layout plus how my track would flare. Some of the NM we opened were, according to my ball driller would have been perfect for a lefty. I actually had to wait for his 3rd shipment of NM until we found a perfect pin, CG and hart location for my layout and PAP (not in-lined). He told me the negative weight will not hurt my roll and the weight block is the key here. He told me the hart can be anywhere has long as you track over it or flare over it. All I can said is this ball is a monster, I have been bowling over 20 years now and have almost tried every ball out there. I get 4-5 inches of flare and actually my track moved up. Ball handles fresh oil with ease and the hit is nothing I have seen. If the ball driller knows what he is doing you should not have a problem. Just remember the have the CG within 1 inch radius of the center line so you don't have too much negative weight or positive weight. By the way I don't have a weight hole and ended up with about 1/2 oz neg. Can also be the ball is not matching up to your game or condition you bowl on. Well good luck with it.
Edited on 12/6/2006 3:33 PM