So I'm having a bit of a dilema deciding where to place my crash cymbals. I have 15, 16, and 18 inch crashes. Right now I have the 16 and 18 over the rack toms and the 15 over my floor tom. I'm thinking of putting the 15 and 16 over the rack toms and 18 over the floor tom, but at the same time in not really sure how I want to work it all.

How do you you guys with multiple crashes have yours set up?