SGB, I guess nothing. I just looked. They are #47D's. I think I want to keep them.
My thinking (when I bought my Operators) was to use one Chip McCormick to carry in the weapon hot, just because the lack of the slam pad made the weapon a tiny bit smaller. Then to have three loaded Wilson's as backups, when slam pads would be a plus (i.e. under moderate stress).
Then I started reading a lot of guys slamming the hell out of the Wilsons and as I said somewhere else I hadn't even fired either of them until today, because I had a hell of a time finding somebody who made a holster for them that I liked, that fit the light railled weapons.
Apparently my thinking was solid. I personally had never experienced any problem with Wilsons Mags, but shelved my SA .45's years ago when my Agency "outlawed" SA Autos. Now I'm retired and write my own Rules and Regulations (and do a better job I might add), SA .45's are authorized again.
I guess if you looked hard enough somebody would find fault with a Rolls Royce. A review I won't ever be qualified in writing - lol.