Is this a duty set up or just for the carbine class?
i am gonna run this set up on my own at the range, if it works out then yes i will use the belt ar pouches as the speed reloads on duty. if it works out and something that i think i want to do all the time, then i will run it through a carbine course, which is the best way to test your self and equipment.
I suppose that depends how fast your transition or reload is.
It also depends how far away the targets/badguys are. If the badguys are 100 yds or more, then transitioning to the handgun makes far less sense than reloading the AR
you are totally right, everything is situation dependent. i have a fast transition. but my general rule of thumb is if the target is more than 25yds, then i will reload the ar, and or if there is cover that i can get behind, and the target is closer than 25yds which i would be heading to in the first place. again every situation is different. when the ball drops, whatever i decide to do that is what i am gonna go with. so far my judgement hasn't let me down.
alot of people don't understand the reason for having belt mounted primary weapon mags, when they are carrying a chest rig/ plate carrier. there are 2 reasons,
1) if you have to e&e and drop your chest rig, you still have ammo to get you to safety. the reason for having 1st line 2 nd line gear etc.
2) if you train as i do with handguns more than anything else, and you have belt mounted handgun mag holder, and that is always where you index your mags, then under stress you are gonna index at the belt line for your mags even though there isn't any primary weapon mags there. and even though you know it in the back of your mind.
it is all about consistency. worse case scenario i am wearing my belt rig and a plate carrier as i do and i index the mags on my belt, oh well i have a mag in my hand either way and i am in the fight.