Only thing I would look for in WC:
1. I hear some models use MIM parts. A lot of guys have stuff against MIM so if you do, make sure you call and ask which models don't. If you look thru their catalog it'll say "This model uses all tool steel parts".
I don't know about several years ago if MIM was the norm; You may want to do some research and find out if a CQB from 3 years ago will have all tool steel parts, and if they do not now (I think they use MIM), or if you'll have to upgrade to a pricier model if you are a stickler for tool steel. A used CQB from several years ago may be different....?
2. I hear the Armortuff is getting better and recent makes have few reported problems. I have less than 1000 rds thru mine (probably something like 700) so it's too early to tell if mine will or won't. I got it in July of 2002 as a graduation prize.
I think I ought to stop getting guns for sentimental reasons because I always end up trading them away.
I highly recommend you try shooting one before buying. The ergonomics aren't for everyone. It's the only gun I shoot that unless I keep my fingernails real short, it'll dig in my palm.
While my Beretta is fat, the Wilson is about as wide, but LONGER since it's a 1911. I thought, "Gee, I have no problems w/ my fat Beretta, so the KZ will be alright," but as it's LONGER it has a higher grip circumference, at least it feels that way.
Feel free to PM me or give me a call if you want to talk Wilsons.
If you want a SWEET pistol, check out the P7M8. World's greatest underpowered firearm, and off the charts on the CDI index.