I searched extensively, and didn't find any results, I know the factory recoil springs are around 17 18 # or so, and manage Major power factor nicely, how low of a PF have people ran w/ stock recoil springs. I run a 13 # spring in my G35 w, a 180 gn bullet and 3.0 gns clays, loaded at 1.125, will they even run in a stock glock, or short barrel glock? ie. G22, G23, G27, etc. ????