Please note that I am a retired heavy duty mechanic and have been riding trials for over forty years and have owned, repaired and maintained a few trials bikes.
I ordered thinner clutch discs. Part #1343310-000, which are 2.70 mm. I measured all the clutch discs on my bike and they ranged from 2.95mm to 2.98 mm. I replaced the two thicker ones with the new, thinner plates and now the clutch pack is .55 mm thinner. This enables the clutch to fully disengage and start in gear without dragging. Also starting from cold and only running the bike for 30 seconds can put it into first gear and it doesn't jump forward.
In my opinion this greatly improves the performance of the bike. I appreciate all the information and help from everyone and hope that my suggestion will help. This one of are trails 36 km. and 8 hours riding 6000 feet up.