In general, the sanded ball will hook more and earlier, while the polished will hook a lot more in the backend.
But you also have to take into account there are 3 general types of bowling ball polish.
Lanemasters Factory Finish High Gloss and Powerhouses Factory Finish. It doesnot affect the underlying grit. It stays at 1500 grit.
1. The non-abrasive kind like Valentino's Snake Oil, Lanemasters Factory Finish, and Powerhouse's Factory Finish. They do not change the underlying grit level, leaving it at 1500 grit. These will add length and increase the backend on resin balls. This type of shine is probably the closest in overall hook to the sanded ball, with more length and more backend.
2. The abrasive kind, like Brunswick's Factory Finish and Rough Buff, Storm's Reacta Shine and Xtra Shine. Once applied the underlying grit is no longer 1500 grit. The grit in the polish smooths it to a high numerical grit number but how much is an unknown. The results is based on how much is applied, how hard the user presses and for how long it spins. This type of shine gives probably a ball whose overall hook is slightly less than the sanded ball slowly because the grit level is finer (a higher numerical value).
3. The slip agent type of polish. This adds a chemical that reduces the amount of oil absorption, as well as shining up the ball. It reduces not only the amount of hook but also the amount of backend, making the ball less aggressive overall and able to be used on much lighter oil than than that for which the ball was intended. Examples are Powerhouse's Delayed Reaction, Valentino's UFO, and Brunswick/Neo-Tac's Control-It.
"None are so blind as those who will not see." "Some bowlers are crazy as pickled cats."
Edited by charlest on 3/28/2011 at 5:00 PM