Maybe I'm giving away the big secret, but for motocross I used the clutch to start the race and then again when I pulled up to my truck. The transmissions are constant mesh and don't have high loads on the 'dogs that engage. I'd might 'blip' the throttle on upshifts but not on braking/downshifts. Never had a transmission problem in three years of racing. Maybe now that you guys are holding on to the bars with all four fingers, you will be less likely to run into us when you're passing the over 40 riders. For enduros and trail riding you can use the clutch to control traction on turns, hills, off-cambers, etc. But in motocross the idea is to either be accelerating or braking. If your clutch is pulled in, the engine isn't helping you with either.