he does make it to complicated i use
All stock-type semi-auto pistols, rifles and shotguns, in normal temperatures (above 50 degrees F)
I've never had a problem even with hunting guns that have sit out in the cold .. Also for a carry gun i know it don't get under 50 degrees under my coat usually and if it does i want a new coat.
if your really worried about it run the Lite as it says for
Slide-Glide Lite - Lightest viscosity
All carry guns applied extremely sparingly (for reliability)
Again i use the Standard weight in all my guns be it glock or 1911 or anything else never had a problem