Thanks for all of your replies!
I carry an all steel Colt Mustang in a Mika pocket holster. It is a simple loose fitting holster with closed muzzle. If I went to an open muzzle, the 938 would be about same length as my current set up even though it has 1/2 inch longer barrel.
The aluminum 938 would actually weigh a bit less even w heavier ammo.
How many of you folks would consider the 938 a true pocket pistol rather than IWB?