Here is a list of stuff I currently use and the condtions and lane types that have been good to me with them.

My specs- Left handed- 1/2 decent-i'm being told- 380-400 rev rate, 230 plus on THS and 200 plus on KEGEL patterns-bowl alot of tournaments and run KEGEL pattern tournaments at Colony Park Lanes in York, Pa. 

Theory- Over the label drilling-- used at PA state tournament and had 1512 in my minors event. Was on older syn lanes and oil pattern developed for the state tournament.

Rising Star #1- 60x5x70-- super rolling lay out... Loved this in the team house at PA state tournament, only had 697, missed a couple of 7 pins due to bad approach panels.

Rising Star #2- 50 x 4 1/4 x25 -- using this one on newer SPL in league and in some local tournament on shorter patterns when they get a little carry down on them.

Infinite Theory- 40 X 5 x 35 using this on older SPL in league and local tournaments and some on the house with the new SPL when its to the end of the center- backends are little sharper on the lower end then the higher end in that center for me.

Dark Star- 40x4 1/2x25.. using this as my benchmark ball on the road when Im subbing or bowling tournaments. I can usually use this ball on wood, guardian, and synth lanes.

Theory #2- 50 x 5 x 55 pin in palm on grip. used this when I need to play extra deep and thru the severe FLOOD. Loves this ball on the longer patterns and love I can read it so easily.

I hope this information can help anyone out looking for ball and layout ideas... Good Luck and remember to use TEAM UTAH to achieve your bowling goals!!!