As the band grew, I had the amps & PA across one end of the space. We stood out in front, and it was easy to get a good mix in the room. I call it the "wall" config. :)

Now, we've added a drummer. I reverted to an X configuration with each player and amp in his own corner and we stand more or less in the middle. I have since found it really difficult to get a good mix. The drummer is not the problem, he's monitored a couple of directions and so are vocals, but the guitar amps are a problem.

I'm aware a slight change in amp angle can mean more than an adjustment to the volume knob, and I've been trying that and any other the tricks I can think of.

I'm wondering if I should I go back to the "wall" configuration? Is that the best config to go for if the amps aren't all mic'ed and monitored?