Weekend results: lowering one clip made it worse and confirmed suspicions. Went to top clip and mid range pulls beautifully--however it seems that I've now lost much of the over rev---could be psychological in that the midrange pull is so strong that when it gets on the pipe the transition isn't as abrupt. I like the smoother delivery of power anyway. Jason, to answer your question about other jets sizes---have tried bel, bek, cek, cel(the best so far). 38 pilot seems to work better than 40, 42, 45 and I believe took out the 155 main and replaced with 152??. Do you think some tinkering with main could give me some more top end? Thanks, Jay