Bill Wade wrote: When it comes time to permanently install the (gear box frame) screws I'm
debating whether to use a thin film of Partall on the screws then coat them with epoxy to seal the holes and ensure a really good fit. I'm not sure that waxed fasteners are a good idea though.  -Bill Wade Bill,

I'd install them with flox and no Partall. If you ever have to remove them
(unlikely) a little blast from a heat gun (or your wife's hairdryer if you
are patient) will loosen them enough for removal.

Interesting information about the original manufacture...I took parts of my
gearbox apart, and all holes/countersinks were well formed. I did find some
significant voids between the fuselage and the associated gear box mounting
brackets, which I filled with flox during re-assembly, but the gearbox frame
itself was well built.

Bob P