Trey, had the same problem with my clutch. Call Peter, he will fix you up.
The problem with mine was the Pilot bearing. Mine did exactly what yours did after a few months. I pulled mine out & replace the pilot bearing & no more shifting problems from a standstill. It will get worse the more you dirve it & cause excessive wear on your shift forks if you let it go.
Peter told me it was from excessive dust created by the clutch. I have the FE. I sent the clutch back to him to check out as well. He sent me a replacement, & to be honest it felt toatlly differnt than the first one. It hasnt slipped once, I could slip the other one if I really got it hot probally casuing even more clutch dust. That stuff gets into the pilot bearing, then your input shaft hangs up & continues to spin even with the clutch pressed in.
Hope that helps.
Cole