My church is going from an off the board type setup to a live 2 track stereo setup for a few different reasons. We've puchased a pair of Studio Projects C4s. Right now they are at the far back of the church about 120' from the sound source but we are moving them up closer.
We have a couple of options but the most viable right now appears to be mounting them on booms to the light rig. It is an LED rig and makes no noise. The rig is 5-7' from the front of the stage mounted one foot from the ceiling. It is about 20' long. The mains are closer to 40' apart. The plan was to use the cardiod capsule and mount each to the very ends of the light rig and point them toward the FOH [roughly 10' from the mains]. The problem we see with that is potential issue with high frequency dispersion [120 degree horns] in that the light rig is so close to the stage the PA horns may not be dispersing enough 10 feet from the source and 5' from the front of stage. The other option would be to move them back or put more space between them, this makes the install a little harder as they would have to mount directly to the ceiling.
Coming up from the floor is not an option due to aesthetics......church feels it would interfere with worship. Besides that the Mains are roughly 10 feet from the ceiling so the sound source is high too. We're moving off the board because it's a very "dry" signal coming out and requires the sound crew to maintain both the channel aux feeds to the recorder as well as the live sound. We felt a live stereo recording would be less maintenance and possibly provide a better sound adding the room acoustic etc. It will also capture the sound of the worshipers which we see as a bonus in this case.
Any suggestions are helpful, I can probably post a picture of the space Thursday morning [we rehearse Wednesday nights].