I’m in a similar situation as Eastonpromise. I have a GLD-112 that I have been using for a few months and have been running DCA’s for Instruments, Drums, Vocals (similar to the Sub Groups on my old Analog board). The problem is that when I PFL the DCA, I get PRE-fader levels on all audio. I tried sending the desired vocals into a Mono Aux, but couldn’t find a way to dump them back into the LR Main mix. Maybe I should have tried stereo mix? Or is there another option?