I don’t have a console with buses but do have some capi vp26 preamps which have variable output pots. So was thinking why not just build a cable with some resistors in it to sum 2 channels coming out the vp26’s together and then feed that into another preamp (a vp28) for the makeup gain. Then control the blend with the vp26 output pots and overall level to daw with vp28 fader knob. Worked like a charm! Need to make a few more of these perhaps with a few more channels too.