cable from/to what?
2.
you should set gain even if you are recording from the board. you should never need the 10db pads on the C4's or the bass roll-off. always do roll off in post by EQ'ing. every room is different.
3.
headphone volume at 0 (saves battery)
backlight at 5 seconds
idle timer off
hold on (if its in a place you might bump it)
synchro off
continuous on
check, double check, triple check you recording is set to .wav

