BTW, just to be clear, I'm not against gluing both sides of the m-chassis wheels. If that's required definitely do it. For me, I don't need to and considering I reuse wheels, gluing both sides just makes it harder to do. My current track surface is grippy but even so, tires are not getting undone. May not be the case if you're running higher power brushless.

My TC cars were running 7-9turn motors back in the days, so they had to be glued both sides.