Horse traded into a SIG RCS 1911 . It's basically an Officer size alloy frame with a Commander size steel slide . All my other 1911's are full size steel frame guns , so alloy & smaller frame are new to me . It's used & in good shape . Have taken it down & inspected parts etc . I plan on changing out all the springs & running a bunch of ball through it to see if there's any issues before I put it in the rotation . I'd assume it takes Commander size RS 18-20lb . Main spring Officers size 23lb ? I'm also going to get some Wilson 47XO mags as factory ones have unsupported steel followers . No +P ammo & carry load will probably be the Fed 230 HST # P45HST2 . If it stays around long enough I might have a ramped barrel installed . Any tips or tricks to keep her up & running trouble free appreciated . I've used all kinds of lube over the years from synthetic motor oil to TW25 . Anything special needed for an alloy frame ?