My teammates are good bowlers/smart guys, but some of them are afraid when the ball looks gritty. lol Then again, a couple of them rip the cover off of the ball, so they're always worried about anything that has the potential to create early hook on them.
As of me, I'm pretty much a medium speed tweener. My revs may be a tad higher than the average, but I'm not a cranker by any means. As such, for surfaces, I have fresh 2000 on my Mastermind, 1500 on my Intellect, 500/2000 on my Melee Cross, 1500 (plus lane shine) on my Melee, and 2000 plus polish on my Melee Jab.