Ok I bought what appears to be a Heng Long Tiger I with smoke and sound....NO FLAMING I like the sounds, thougtht the smoke would be cool.

I found a metal gear set on Ebay to replace the plastic gears and am thinking of purchasing them. Question is will the metal gears, and a little bracing when it is apart stop the gears from losing thier mesh and grinding together while the tank just sits there?

Are there any more mods I can do to the tank to make it better (like lower speed higher torque motors)?