I recently purchased a Headrush FRFR112 to use live with my Helix LT. I want to use the FRFR112 for stage volume, and the way I used it this weekend was: XLR-out from Helix to XLR-in on the FRFR112, then XLR-out of FRFR112 to FOH. My dilemma is that once my level is set in sound check, if I need to tweak the volume on either the Helix or the FRFR112, it messes up the mix. What's the best way to route everything so that I control my own stage volume without affecting FOH? Do I route one Helix output to the FRFR112, and the other to FOH? How are all of you doing this?