Don't do it. Why rob them of power?

The M2OW definitely need to be against a wall. I chastised Ian for how shitty they sounded and then took it all back and sang hosannas after crucifying them.

Why do you want to FMB them? How off-axis will they be bolted against the wall?

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated