+2
Also, consider setting up your on-stage or stage-lip array so it favors the keyboard amp, horns or whatever is lower in level over the louder instruments. Stage guitar cabinets project quite directionally and can be loud and focused on-axis even from way across the stage. Moving even slightly off-axis to them can make a big difference. Yet there is only so far you can go in balancing by moving the stage-lip pair around, so letting it catch what can be caught best from that position and figuring on getting good vocals and other bits elsewhere (SBD, monitor mic, or AUD) is a good safe bet. My primary focus in juggling an on-stage or stage-lip setup around is often good, clear, direct drum kit (usually aiming for a direct line of sight to the snare)- a detail and transient rich source that really benefits from that positioning rather than back in the AUD or through the SBD.