I had a Track 607A SE that simply would not match up to me no matter how I tuned the cover. My driller had a VG Nano that was his with very low games that he wasn't using. He wanted my 607A, so I traded it to him for his Nano and all I can say is WOW. This Nano is unbelievable in control, getting thru the heads reserving energy for the back end, hit, carry, sending scouts flying, and etc. This ball may turn out to be the best ball I have ever had. Just need some more games to verify that statement.
He had the ball at 4000 Grit Abralon and Polished with Pin over RF slighted the bridge and on center line and out about 1" from grip line. I have never had much luck with that drilling or any otehr high pin drilling, and especially with a 4000 Grit sanding and polish. It calculates out to 65* x 4 1/2 x 40* after he shortened the thumb to fit my specs. Bowling on medium to medium heavy oil on synthetic lanes, I figured that I would have to adjust cover down to 1000 grit give or take a bit and no polish as I don't have much hand and revs on the low side of medium.
I tried it like he had it and I couldn't believe how well it worked for me from the very first shot on. As much as I love my Mission and Gamebreaker, I think this ball is going to pass them up. Time will tell as I only have had it for 9 games so far and love it.
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"Whenever I feel the urge to exercise I lie down until the feeling passes away."
Brick