Nice Ed! I just did much the same: 20SF, KKM 6", Lone Wolf stainless guide rod and flat 24 lb. ISM recoil spring. I also had to do a little chamber/ramp polishing and shorten the overall length of my beartooth 200 gr. WFN GC bullet reloads to allow them to fully chamber. I haven't had it back out to see if all the polishing will allow the Beartooth reloads to function smoothly. Lots of fun!