Renting a follow spot for a musical in a small theater. It is about 50' from spot location to front of stage, maybe about 60' to the typical actor being spotted. Previous rental specs. just said "cabaret style" follow spot. What does that mean? We always seemed to get one that worked, probably because the rental company knew the application. But we will be sending out to others who may not. So, what requirements should be listed to make sure we get a proper unit, besides throw distance? Anything, type, footcandles (how many typically?), diameter of circle, etc? Color boomerang always included, or should that be mentioned too? We've had some noisy ones; what's the best way to prevent that? Thanks.