Thanks for all the replies. Got the replacement and I've been watching a 4 hour series online for tuning it, and I did everything and it seems perfect. There was a section about adjusting the safety clutch and it said to hold the button down and give a quick jerk to the wheel to activate the safety, but I can't get mine to activate. I used a phillips screwdriver to push the ball in, access the screw, and loosen it so that it "should" take as little force as it's designed to activate. Is it likely that my clutch will function properly when I eventually get a jam?