Could these cs 10 iem mics substitute for drum overheads?
Even if they "could" be wired up to the PA, they are likely omni pattern.
Good for the drummer to hear everything around him. Not so good for any kind of isolation.
I wouldn't want to hear the artifacts as the drummer moves his head around. It would be pretty brutal. Bobbing up and down might be acceptable, but any head-twisting would be ... ah..... interesting ?
Let us know how it works out, who says I even know what I am talking about ??