Well, there's probably no talking you into keeping both bikes, so sell the Centurian. You need something to bomb down those canal paths like a kid, and that MB-3 is better suited for it. You've seen the threads on these boards about Centurians. So sell the Centurian to one of the forum members who will love it and ride it like it deserves.

A sentence of hard labor in the rock quarries is ill justice for a nice Centurian like that, sorry.