Flickin’ nubbins when clubbin’ will get you a drubbin.
Yeah, given what you said, seems like one could cut a slot all the way through. I have a SOG Vulcan Tanto San Mai with 3 cut slots in the blade. I discovered two were large enough to fit some trit vials. Because the slots were cut all the way through, I taped up one side to keep the Norland from leaking through. So same technique could be used for installing one on a slotted button cover.
Hhmm - sounds like same trick I do using tape on the inner pill side to fill in USB charging holes with epoxy. I've been using kapton tape actually, and JB Weld. No pics though...
There’s not much difference, I had no problem but I have used a very slightly thinner GITD O-ring, I’m sure the stock one would be fine, a little extra pressure on the MCPCB which is good.
Stock MCPCB = 20mm x 1.45mm, Noctigon = 20mm x 1.72mm.