Guy's if you want to really get the optimum holeshot than you really need to get a digital delay with a trigger on the hot foot. You set the timer for a specific amount of seconds, trim down all the way and punch it. The timer will trim the motor out for a specific amount of time and all you have to do is fine tune the final few bumps. No guessing, no looking down at gauge, no counting seconds or "bump ups". After awhile you will find that you will need to set the delay so it doesn't come on immediately (say a 1/2-1 second delay). Glen Reynolds sells them and they work. Anyone and everyone that drag races uses these. I have one installed which I was using when I was drag racing the GS.