[nativepaul]

If you have a metal spur swap it for a plastic one if one is available, and not necessarily from the same company as often diff dimensions are shared. On my Hot Bodies Lightning 2 pro buggy I found that Kyosho Inferno Sport plastic spurs fit my diff, and on my Xray XT8 truggy I used a plastic spur from an Asscociated of some description (cant recall what exactly) both were a hell of a lot quieter on plastic.

I am sure there is some mathematicaly perfect way to set the mesh using the gear angles to optimise efficiency, but I just run a blue (thinest) Rizla (handrolling cigerette paper) through the mesh which ensures they are not jamming but only leaves a tiny bit of backlash probably under a 1/10th of a sheet of normal writing paper.