Thanks Chris . Yes, the black epoxy reason does look funky! It all looks a bit untidy but that’s because of the sheer quantity of thick cabling involved - it’s all completely insulated and electrically safe.

I also used a thicker gauge input cable, also Belden. Oddly, although the diameter of the conductors is greater the overall cable is thinner, because of the much thinner Teflon insulation used. It’s also very much stiffer!