I'm stuggling to decide on a key configuration for my ipac (1P start, 2P start, 1P credit, 2P credit, 2 x 6 player buttons). I'm using MAME, ZSNES, and FUSION. I've decided on 1,2,3,4 for the player start and credit buttons, but not sure on joytsicks and player buttons. Does everyone use a set config? Are there optimium configs? Safe configs? Buttons to avoid etc? Would appreciate any advice.