this season in my second shift leagues, urethane is working out great. and the layout is important, but not so much compared to the cover.
I have a breeze, blue hammer, and a lane1 spare ball with a diamond core. I can use all three balls playing outside with the urethane giving me a lot more room for error. All the surface on these balls were adjusted to get the balls to read certain parts of the lane.
(I HATE THE 1500 GRIT ON THE BREEZE!!! I've owned 2 and both OOB covers were O/U!)
I pretty much use one pin to pap position, 4" pin to pan on most of my equipment. And for THS, I don't need no fancy/other layout's.