The benchmark ball for me is my Havoc. The way I set up the layout allows it to read the lane conditions nicely and be a good set up for whether I need to move to something stronger or weaker in my lineup. My bowling coach and I discussed what type of bowling ball as well as the characteristics based on my style that I needed for a benchmark ball. Being that I'm more of a stroker, something that will give me a controllable arcing motion is what I feel I need in a benchmark piece, as well as handling a decent amount of oil but not on the extremes of light or heavy...
Matt