When I start a new song in S1, I select "New Song" then, in the New Song dialog under Interfaces, I select StudioLive AR8 USB Session. When it loads, all 8 tracks AND the Master tracks are armed. What does arming the Master track do. I've recorded with it armed and not armed and I can't hear a difference. I know I don't have to load the whole StudioLive AR8 USB Session and could just ADD TRACK, but the Master Track question would still exist... To arm or not to arm... That is the question.