Its been a while, I haven't had as much chance to experiment. I had a problem with pack burning, keeping the revs high during burnout is critical as is superconsciously flinging that lever. So far I have not been able to get enough passes to really get close. But, last launch at 6k, which is just preboost for me, and the clutch tune amazingly kept it at 6k for 330ft in 5 seconds at WOT. It didn't burn the pack. I aged a year in 5 seconds. Next step is to launch at 7k in boost, maybe 7.2 if it bogs off line. Once I get this, I will show pics of how I have it. THis tune would work well for an NA engine but mine has nothing at all, maybe 140hp maybe less with no boost with such low compression. I may increase the wheelbase length. its track only bike now and no real reason to keep at 66.