Feels like we've got more than 4 sets! I'll bring them along. Might as well weld any good ones too, and just avoid the issue.

Also Jamie, I've replaced shafts in these a few times, I just avoid doing it if possible as it feels quite invasive, especially if I have an alternate complete gearbox available. For the future we're going to try and ditch the reverse thread screw locking method and go for some form of grubscrew setup, the GR02 shafts will be perfect for that, with their flats. Had already crossed my mind to do that ahead of the champs but I don't see why the pins on those shafts would be any stronger, I believe they're identical. One day we'll run out of old drill shafts, I'll go Gimson shafts then!

Crossing my fingers that the failure we had was because it was an abused gearbox, and not because we're still putting too much stress on the pins. Don't see how we can be, to be honest, we're no longer overvolting...