I just shaped my neck piece as per the armor templates. When I place it on my chest and move my arms up to about parallel to the floor, the piece gets pulled up off the vest by my shoulder muscle and also digs into my throat.
I sanded it down so that I got more mobility out of my arms and less choking too, but now the piece is not movie accurate.
My question is: how does everyone cope with this problem? Do I suck it up and not lift my arms or is there some sort of way to cheat this? Really all I'm worried about is the armor tearing loose if I move my arms too high.