Ha! Ian's post made me smile and yours made me laugh.
I'd be glad to field test the M5s, but I don't think I am capable of producing detailed data. My only test instruments are two aging ears connected to a brain, heart and soul.
That's the thing about music, it reaches and arouses all of our most human faculties.
Yes, I feel that irresistible impulse rising and when I am unable to resist, I will give Ian a call and report to you all!
Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.