Please read again: "Best as *I HAVE EVER HEARD THEM*. I, me. Alex. That's my opinion, my stance, not a statement of fact.
While I haven't heard the C1 mono, I've had the regular C1 in the store for a good while, in our regular system, and I've heard Vivaldi extensively in client's as well. Both good products, and I completely understand if folks are happy and truly satisfied with either. But, to MY EARS, the MSB products are in a different league altogether, for the reasons I exposed.
Unfortunately, Alex, "best as I have heard them" stood completely loose from "it's the best digital", as it was far towards the end of your sentence. Your statement was at the very least ambiguous, and Elliot was right to criticize it.