Ok...so i had the same problem almost everyone has with the 3650...it seemed to be worse if i didnt shift perfectly straight into gear (By this i mean if i was going in quick and kinda angled it into gear...unstead of going all the way left then straight in)..<<hope i make sense....so I had this problem daily...recently I installed a Steeda Tri-Ax...as you know if tightened the shift pattern and made for smoother quicker shifts...Well sense I Upgraded my shifter...its only happened once...I really think an after market shifter makes a huge diference...the reason im posting is to get feedback from other people who installed a shifter to see if they had the same results....then we could have a solution (or at least a partial solution) to this problem