Two 740's and one 738. Think I'm just going to use a standard mag in the 738 and carry the extended as a reload; not much sense taking a pocket gun that fits perfectly in my front or back pocket and turning it into one that doesn't.
The 740 is a little different because I wear it IWB at 11 o'clock and the extension doesn't change its profile or cause it to print; so I'll probably keep one in the gun and carry the other as a reload.
I haven't had a chance to shoot them yet; anyone with any experience with these that can comment on their reliability? My initial impression on the quality is they seem no different from the 6-rounders in that regard.