Mk III was completely rebuilt to the best standards I could manage: I managed to cut the 4mm polycarbonate more accurately by using a circular saw (which didn't bend when cutting, unlike the jigsaw I had been using previously)

I also started using metal geared Sanyo GM11 motors, rather than the plastic GM10s.

As it turned out, this watered down Dynamite's agressiveness. The GM10s rotate at 370 rpm and the GM11s at 246rpm. SO it'll be back to a speedy Dynamite next time.