Thank you for your well illustrated tips and tricks. It's a shame TM is not continuing with this design as the only other fix I would have liked is a solid 1 piece under chassis (no battery hole) to prevent the occasional bowing or tweaking.

The cars rear grip tends to fade at the 3-4 min mark I was thinking it was the tire additive wearing off.

Your tips cause me to think I need to add even more rear grip to this car.