need help. Stripped two spur gears in two packs ?? Running hobbywing ten turn sct combo 2s indoor small 45ft x 25 indoor carpet track. only have 48 pitch was running 93/19 no problems then re geared to 93/16 and got about 3 packs stripped first gear. bought 87 locally (waiting 32pitch to come from amain) re geared to 87/17 close to old 93/19 and got about 5 mins and crunch spur gone. Did not get time to check temp but could touch motor for at least 15 secs before hurt so not super hot. Used to run rc and slots years ago so i know how mesh should be did not seem too loose had slight rock at tightest spot. Am i missing something. Are 32p gears better. How tight to run. Gearing tips pls. Not sure if stripping on power or brake seems to start on brake. Sorry for long post trying to all info.