Thanks to everyone for the tips, before eating dinner I re-soldered everything over (don’t worry McCreed, no a-hole vibes) but that didn’t fix it so after I switched the jack wires.

This seems to have fixed it. No extra noise when touching the bridge or control panel.

The next step for tomorrow will be stringing it up and testing it on a reliable amp this time. I’ve just discovered my testing amp has been playing up and isn’t working properly but luckily my line 6 amp (sorry tone purists) is fine.

Thanks for the help and I’ll post an update tomorrow sometime.

Cheers,
Dylan