ORIGINAL: ozium
That's strange. I'm running a MM/Velineon system on a 3S lipo - I've had no trouble at all with the spur on my DT. I stripped my first spur because of a bad mesh, but the second one has been on for over a month with no problem. I've been running it hard on concrete and dirt - ffull throttle landings, wheelies, donuts. I've broken a few a-arms and bent a turnbuckle, but I haven't had any trouble with the spur.
right. thats because you have your slipper clutch adjusted properly. the OP did not. so it's not strange at all.