Can those who use the simple green describe the film that supposedly forms when not used with isopropyl alcohol? I was told the Isopropyl alcohol will prevent the film from forming. I think that is what made my Nano go from super tacky to really smooth and zero grab.
As the others above have already said, clean the ball with water or better yet alcohol, after you cleaned it with SG.
I also thought I felt something on the ball after trying SG several years back, but I couldn't see it. SO I tested SG on something that I was greasy/oily/dirty, but on which I was sure I could see the leftover film: a car windshield. Sure enough, even after wiping the windshield with the diluted SG on a micro-fiber towel, to clean the dirt off, it left a film that could be easily seen. I wound up removing it with some alcohol on a paper towel.
I don't know that it could remain on the ball for long, once you start throwing it down the lane, but it sure can't be good for bowling.