Hey guys, I have a 1/10 HSP SCT and the original 26t steel pinion somehow snapped off two teeth right next to each other. So I ordered a 21t 48p steel pinion to lower temps and because I needed a new pinion but after only a few runs the gear is worn down and the teeth are sharp and no matter what mesh I try it doesn't sound good at all. What pitch should I be using? I think I read somewhere that metric and imperial don't work together? PLEASE HELP!