just got my MTX5 last month and just finish break in my reds engine. for some how i don't get any problem with gear stripping. i set the sims carefully and engine position correctly. but the problem is not the sims or engine mount. its the break and chassis.
why break and chassis? coz if i adjust the break linkage to much it also pull the engine (the chassis move front and back) I think is causing the gear stripping.