1. When running with plates, how to keep them from hitting the bottom of chin at sprint speed? When worn anatomically to cover the high arteries coming out of the heart... at full speed sprints they tend to hit my chin in any sprint at 85%+. They are as tight as possible while still allowing deep full breaths without impeding breathing, while not slapping or losing contact with body at any time.

2. When shooting pistol, as both arms move to isosceles shooting position plate tends to rise up into throat as well. Doesn't get in the way of fast accurate fire, but can be annoying.

3. When shooting in prone with both plates and helmet:

Plate tends to pop up and forward making shouldering the butt of the rifle particularly difficult. Off the plate is pretty far out (plates extend to the nipple, butt makes contact just outside of the shoulder pocket)

dropping to prone, helmet tends to be JUST... lower than horizon/level height and requires an additional upward tap to rock it back and out of the way. high quality helmet and fit correctly, no visor lip or low cut rear

4. When running a heavy vest, lower armor sticks out enough that 3 o'clock waist carry can sometimes result in an impeded draw, but trying to avoid subload/mid subload on leg (all over the place no matter how tight when running); any other ideas? No vest mounted pistols.