Sorry to go on and on about this, but anyone into this ought to check out the "Speaker Selection Guide" at OmniMount. Axiom is not one of the brands in their pre-configured set of recommendations, but the M60s have dimensions somewhat similar to a Monitor Audio Silver 8i, which is in the system (and weighs 48 lbs, one more than an M60ti). Looks like they have special instructions on wall-mounting the floorstanders.

Birdman

"These go to eleven."