Is this your first time installing a Cycle concepts Clutch Pak? I run Motul 5100 have been for years. The thing I found from going CC is I have problems adjusting the clutch cable right must be a slight clutch pack height thing(even though they are suppose to be OEM and same height I ordered). I don't slip but can't adjust per Manuel I have to play with it some, it's been causing me to have issues with out of adjustment on the track. Also, the Clutch Pak never lasted as long as the OEM but then again I am more aggressive when I first went to the track on the 10...on my Second CC pak.
Your 60 maybe improving but it could be your going WOT faster than you thought because of slipping.
I would check the adjustment from basket to lever first.