I have read the occasional reference from people that do mix with IEM on. I know you can't get the room feel but I am hoping I can at least keep an overall balance. I plan on a sound check out front with OUT my IME and adjusting the mixer accordingly and then using the setting as a reference in my ears for any blatantly off changes. I will take them probably once a set and pop out front for a quick listen and reality check. I have to mix now from stage and I've been use to a FOH person doing it for us. All that time I used IEM and forgot how loud the band can be (or seems to be) onstage. I have tried to mix us without my IEM on using a FOH mix in a wedge but my ears ring at the end of the night. I refuse to allow that to happen "again" and there is no way the guitars and drummer will relax so it is IEM for live mix. I welcome comments from those that have actually tried this. No offense meant but no theorists please.