I don't trust live sound guys to mix my keyboards for me. They're notorious for turning things down or off when nothing's coming in on a channel. I just give the guy a mono send from my mixer. He's got enough to do without trying to deal with 4 more channels. I mean, how many times can you actually hear the keyboards in a live show? It's all kick, snare, and bass, and a faint tinkling sound when the keyboard gets featured, that is until the solo is almost over, which is when it finally gets turned up.
"You're either with a native DAW, or you're with the terrorists." G.W. Busch Lite