I have a 14.7in that I cut off the pinned and welded A2 cage, I'm going to pin and weld a DeadAir flash hider. My question is should I add an Adjustable gas block before I pin and weld the F/H? I've got a Nomad 30 can in jail that will being shared with a 16in 223Wylde and a 11.5in 5.56 built. Most times suppressed but not always. So is an adjustable gas block recommended?