Ok I gotta ask this one. I just got two AT PRO 45's for a band room and I'm gonna hang them in an XY pattern just above and behind the director. The problem lies in how to tack the cord to the ceiling. I called AT to double check it was safe to have the mic just dangling by it's cord and the said "oh hell yeah" (direct quote ). So now I'm thinking is there some kind of concrete staple or is there a better way to tack the wire to the ceiling which is concrete and where I want to mount them is on a support beam so I'm thinking a really big hole wouldn't be an option.