Spent several hours extra at work engaged in a sort of 'range of motion' physiotherapy-type rehabilitation, for a very specialized machine.This involved rewinding several 'mainsprings', two-foot wide steel coils some 150' in length, so they exit a cartridge in a counter-clockwise orientation. This reduces wear inside the mechanism and stops most of the jamming that's been eating time and ruining workpieces.
Not sure if I hurt more than I'm tired, or vice versa.