This is a decision shall be driven mostly by how much you are willing to spend. I can say I have handled both the mod.4 and the mod.22. They are HEAVY and THICK (especially mod.22)

I am sure they are high quality cutting tools, but too much $$$$ for my blood.

I suggest you look upon the mod.22 as a sharpened crowbar/chisel that is too short to use as either.

I have owned several Wilson 1911's and all but one were simply amazing. The one that I was not happy with was taken care of with a smile and no charge to me, so that speaks to their service.

BTW, the Wilson 1911 magazines are the only 1911 mag's I own that don't wear out over time when left fully loaded. YMMV