always wanted to try, my balls got bigger tonight and went for it. raced a k7 gsxr 750 -1/+2 w/slip on twice from a dig and beat him, dont know by how much but he never passed me lol. also went from a 40 roll with a gen 1 10 like me 3 times and stay ahead until 4th and he pulls on me hard!! rider weights 115 geared, and i weight in at 180 geared. my bike is -1/+2 with full akra, filter, and pc. so pretty satisfied with the results, hopefully ill improve more on my launching!!