e-revo having some issues

Hey all. I recently got my first conversion running, revo 3.3 with rc-monster mount, feigao 8XL, quark 125, and 4s 5000 maxamps.

I'm having a very difficult time with the slipper, and the spur. I keep stripping spurs because the mesh won't stay locked down. A few minutes running great and the mesh gets loose and eats the spur. The other issue is the slipper. I have to tighten it to completely locked to keep it from loosening during running. I get about 5 minutes that way before it loosens back up and I have to stop and tighten it again.

Any suggestions for a better slipper setup ? There's not enough length on the shaft to fit a proper spring, just those silly little spring washers. I like the slipper setup, I just wish I could get it to stay in adjustment. I'm going to try some screws with larger heads and lock washers to see if I can keep the motor from slipping back away from the spur during running.

J.