I was once playing in a big band with a full saxophone section, 2 trumpets, a trombone, piano and not one but two rhythm guitarists (I understand it's not as uncommon as I'm making it sound like). On just about every practice session, I plug in, find the tonal sweet spot and then do some improv while I wait for the guitarists to set up. Despite this taking up to 15-20 minutes, the guitarists never asked me or the other members to play a note so they can figure out which volume works out, the result? completely inaudible guitar playing (shocking, I know ). But hey, at least the occasional 'twang' here and there sounds as it should, wrong. You see, these guys had Les Pauls (not the same ones, but it doesn't really matter), and for those of you who don't know, they tend to make a very high-gain, sloppy sound when put into a combo amp without turning down the volume, which just sounds horrible for rhythm. Long story short, I told the dudes about it, and they acknowledged and I've noticed improvements. Have you ever had your guitarist or really any band member who sets up weird?