I drilled a hole in the bottom plate in my first ever pedal build, an NPN Ge fuzz face, so I could quickly access the PCB mounted trimpot. I used a rubber stopper to plug the hole and it worked like a dream. I posted the hack on the pedal site’s forum under the “mods” section. However, I decided to modify the trimmer by making an external trimmer. I have an external trimmer/bias on all the Germanium pedals I have built.
Adjust-O-Bright 3PDT & LED Wiring Board is my attempt at a name. A little long, but best I can come up with.