This may be a bit out in left field, but the basic problem here is "what will my ears like"?
One thought, and only just a thought, would be to by a pair of M22s strictly for the 30 day trial period.
The M22s sound remarkably similar(less deep bass)to the M60s, so they would give you an idea of whether the Axioms are the "sound" of choice.
If you opt for the Axioms, at the end of the trial period you have the abillity(I believe)to have the M22s shipped back to Axiom for free in exchange for a higher priced speaker pair.
Shipping a pair of rejected M60s back would be somewhat pricy
