Jim, I'm no scientist and I mean no disrespect.
But are you really suggesting that your theoretical analysis of speaker parameters is going to somehow "prove" that M60's do not suitably timbre-match the QS8's? I think you are WAY over analyzing this. Axiom's R/D seems pretty complete, and I'd humbly suggest they have probably already taken care of this analysis to the point where your work is redundant. I mean, it might be an amusing academic exercise, but you really can't know more from a software program than you can from listening, can you? I'd call and talk to the Axiom geeks directly rather than spend a lot of time trying to replicate or disprove complex, existing research. But I never liked Physics anyway.
What mains are you using now?
If you like the QS8's, you're probably going to like the M60's.
