I shim the duffs and I maintain them regularly actually but they always strip. Is there a way I can help prevent it... I also need to get better at driving because when I hit a large jump I keep my finger on the throttle.. This may be the problem.
Cars: erevo vxl, 1/16 summit, stampede vxl, tmaxx
You have to let your finger off a split second before you land, it will become second nature very quickly.