Sometimes is just a waste of time, specially with monitors on stage. I remember the first time I played with Los Straitjackets and saw their stage-plot. At the end of a very short directions you could read: AND NO MONITORS, PLEASE. Yes. They are great, pro musicians and they know. You spend an hour or even more time onstage so the monitors guy can justify his "work". I recommend having a "sound man" you can trust and yes...FORGET ABOUT MONITORS: even if you did soundcheck by the time you got on stage they never sound the same. And come on, we're not Kiss nor Pink Floyd. We have bands travelin' around playing in small clubs so...use that "soundcheck hour" to sleep, eat or meeting a good looking seƱorita!!!!!.