Why not use MC cable instead of romex ?
I never run romex in metal studs. Never! Too many sharp edges and tooooo many careless fellow tradespeople. I notice that even if I do a stand up job installing any cable, someone comes along after me and screws it up by pulling on it or leaning smoething on it or running something by it.
I would even go as far as punching / grommeting and still use mc cable.
Maybe I am too picky ?