I've recently bought a Gen3 Glock 21SF with the intention of building a 10mm long slide using a Lone Wolf G20L slide and 6.02" barrel. I bought the 21 because I wanted a full size .45 as well as a hunting/backpacking gun in 10mm. My question concerns reliability/fitment issues with Lone Wolf components. I own several other Glocks (including a 34 with an LW threaded barrel) that I've tinkered with, but never to this extent. Does anyone have any input or experience that could be offered to help me with this build? How is the fit and finish on the LW components? Does this combo live up to the reliablilisty of a factory Glock? What weight recoil spring should I use for high pressure 10mm hunting loads (I will not be using a comp)? Thanks for the help Wanna kill these ads? We can help!