I keep scratching itches.
I like the 40.
I like the 357Sig
I like 9mm
Of course there are a couple of others I like also....45 acp, 357 mag/38 spcl.
I have 4 40s. Three of them (FNX 40, FNS 40 and G27) have 357 Sig barrels to be swapped in / out.
My 4th 40 is a Shield (about a week old) and I have a 9mm barrel with mag being delivered in the next couple of days. May even order a 357 sig barrel.
I might even get a Shield 45.......the "need" is there....to go along wth my other 45s
My biggest problem is that I sometimes can not make up my mind which caliber where....trucks, cars, bedside, office, sheds, etc.
I will find out about the 9mm Shield barrel, but all of the other guns so far shoot exceptionally well in 40 and 357 Sig....was even thinking of getting that 357 Sig barrel for the Shield 40.
I am crazy, especially since I built a small shooting range in my back yard. Going to go broke on ammo now.
I also have a Sig P938 9mm and it was my daily carry and "loved" until I started having problems with the safety going from fire to safe and the magazines popping out .....this after approx. 2000 rounds of shooting exceptionally well....do not trust it now and will send it to Sig. I doubt it will ever be trusted for a carry again.
If I had to carry just one caliber, it would be the 40 most likely.