From a MCH standpoint: After participating in FL for the first time finally, and after a single match, I can tell that having GB on just isn't the thing to do. I could barely get a hit in with it due to the movement required in the matches. The only time I can really find a use for it is when an opponent is isolated and I can hit them with Ricochet and Gauss Round. The rest of the time, I leave it off and focus on movement. I'm not complaining, because FL is supposed to be different than PvE content, and that's exactly what it's doing, since in level 60 content I rarely find myself in a situation where I need to have GB off. I'm enjoying the change of pace, (and the generally nicer community), found in FL so far......