Sometimes you get just a little bit of audio feedback in a large sanctuary with a complex audio system. What do you do when this happens during a worship service? You can’t stop the service and fix the problem; you have to do something on the fly. The best recourse is to make adjustments that will control the feedback without sacrificing performance quality. For example, you might tweak the “send to monitor” pots down a bit. Sometimes, this shotgun approach resolves the feedback without affecting the quality of the sound that the congregation hears. However, you’ll want to go back later and track down the problem more completely. The instrumentalists that depend on that monitor will appreciate it.