Nick: I read about your happiness on receiving your new accordion from Mark. I reminded me of when I got mine about 10 years ago. I went to the Doc Marshalls website and checked out your MP3's, very nice ballad and two step. I guess I'll have to buy your CD to hear you play some more.
My wife I play in a cajun band in Seattle: Swampsoul.
Our tunes tend to be more blues influenced that yours (the two tunes I heard). I play a C (Mark's) and a Bb (German made) accordion.
Keep playing, its a blast!