[frizzen]

Tore my tank open to fix it (one motor dead), turns out the MT "Master" Tanks use a worm in the gearbox, so that's out as a direct swap. Oh well.

Did some exploratory surgery. One of my wired coreless motors unsoldered a field winding. I tore into my box of spares, found some 2.6 Bits. Installed. While I was in there I routed my antenna through a gun mount and got like 1.5" more arial. The good news is 2.6 Bit motors are matched well enough that I don't need a trimmer for the tank now.

I have a spare wired coreless motor now, so I think my Semi is gonna get dual motor, dual drive axle. And now I know that this project isn't really workable in the form I hypothesized.