After an exhaustive search, I finally found Wilson Combat 10mm mags in stock!!!

http://www.shootersconnectionstore.com/4010mm-C758.aspx

I've been using .45 WC mags with great reliability too but just wanted 10mm mags for peace of mind
when I carry the 10mm.

Thanks! Your search skills are better than mine, my fingers are 1/4" shorter now than before I started with my search, lol.

Quality doesn't come cheap.

How do they work? Mine don't lock back on my RIA 10mm

The few that I have work fine on my Dan Wesson non bobtail Commander.

http://www.topgunsupply.com/wilson-combat-47nx-1911-10mm-magazine.html

Top Gun always has a few. 

Thanks you guys!   I was on email list because i couldnt find any.  Gonna order one now!