"Overgunsmithing in SASS" - surely you jest...
The best thing to do is to disassemble and clean and lube to your satisfaction.
I do this on any and all new (or new-to-me) guns.
That way, I'm not fighting decades of sticky oils and shellac-like buildup.
At that time - I look for any evidence of burring, and if present - I stone it away, smoothing the area.
After reassembly - I shoot it.
I shoot Colts, Winchesters and Smith & Wessons in CAS, and all I've ever had to do was to clean, lube, de-burr and replace a broken spring.
I shoot NM M1911A1's and M9's as well as NM M14's, M16A4's, MP5SD's, M82 Barrett's and M40A1 Sniper Rifles and everything else in the inventory and all I ever have to do to any of those highly modern weapons is the same.
If a gun needed instant work - then you're not buying a gun - you're buying a kit.
Scouts Out!