I didn't know it took lots of work for such a small kit. Just want to say thanks for providing great info at this forum. Here's an incomplete list of what I did:
o sanded chassis and plates and ca glued the edges
o sanded pod plates and front lower arms for symmetrical height
o sanded the top plate for silky smooth surface
o sanded the friction plates to be sure they're flat and stuck on some teflon tape
o grinded the t bar to push the motor a little more forward
o countersunk the chassis holes
o polished almost all the metal parts
o blueprinted rear axles and plates; they're very smooth now