alright, I haven't given up just yet.. It's that time of year again. So after last years mess I left it off with the clutch now screams on the low end but I still am having issues holding rpms under load in the top end, (it's not backshifting) the sled just dies. I am thinking of sending the primary off to thin air in truckee I believe I still have a month left under warranty, but with that said i've been to lead to believe it may be the secondary that is causing the non-backshift issues? Either way I deiced with my warranty soon being up to opt for an aftermarket secondary clutch, I just ordered up the Team Tied driven clutch , with a, 6662.33 6660.36 helix, and Red Black Spring. Hopefully this will help this sled put more of the power it has to the track, and if I'm really lucky elevate the issues I'm having with it dying in the upper end, we haven't touched or messed with the driven clutch yet all efforts have been focused no the primary, am I on right track or in worse case at least be eliminating the driven clutch as a possible suspect?