I never could get along with the subs.
They do conceal a little better, but for me, more uncomfortable to carry. The muzzle is right under my belt and presses into my sciatic nerve.
A little longer barrel carries better for me.
"If you're not shootin', you should be loadin'. If you're not loadin', you should be movin', if you're not movin', someone's gonna cut your head off and put it on a stick." -Clint Smith