Hey Outlaw,
I do not use alcohol, prior to waxing.
I did some fairly extensive research on this subject, and came to the conclusion, that the wax displace any moisture, will disolve and remove any greases, and oils, including oil from skin contact.
I simply wipe the gun down with a soft clean cloth, then apply the wax to ALL surfaces ,metal, polymer, and wood, then buff.
Been doing this for years ,never seen and negative results.
I have been experimenting lately with Meguiars NXTgeneration 2.0
car polish. It is a polymer based coating, that seems to work just as well, but stays and protects longer , more durable. I am still evaluating it at this time, but seems to be something I may use exclusively.
I do use it on mags and bolts,and it sure makes em smooth, and waterproof.
I did a steel mag, sprayed it with water, let it set for 2 days, no signs of rust, wiped off water spots with clean white cloth, no yellow residue at all, therefore ,no oxidation.
Just my findings, others may chime in with better ideas.
Jim