Oh yeah - on that note: I never have had to use the throttle at all to start it (in my vast 6-week / 1200-mile ownership experience), and decided early on to always start in Neutral to avoid any clutch drag.
It has always slipped since I got it home (interestingly, never did this on my 400-mile maiden voyage to my garage), and now as mentioned above simply will not spin the motor.
Bottom line? It don't fix itself.
BUTT!.... once this is fixed I feel like I'm home free. (Of course, I'll tuck away a waterpump rebuild kit and a spare fuel pump just in case!)