Well noticed my Dreamtact Compacts' impact moves from just simple bumps of the barrels getting them in and out of the box. I tested it in the basement by just tapping the moderator up, down, left and right. The impacts would hit in those locations about a half inch away at 11 yards. I ordered some 22mm OD x 20mm ID carbon fiber tubes and plan to slide them over the outside of the shroud and cut them just a smidge longer than the shroud so the moderator can put tension on the carbon fiber tube against the reciever. Fingers crossed it fixes the wondering POI.