You also can request "how wet" you want your box. If it's extremely wet, I find that chords don't sound as good to my ear. If it's slightly wet (5 - 7 cents) the chords sound better to my ears.
BUT some Zydeco players don't play as many chords as heard in Cajun.
Yeah you right, David. I personally like to use both wet and dry tunings. I guess it depends on the tune, really. Dry tuning definitely has a clearly-defined modern sound, IMHO. And that old-timey smokey bar "live" sound, makes me think wet. Maybe it was the poor recordings made in the 40s and 50s. Someone who I admire a great deal who is doing something different today, is Travis Matte & The Zydeco Kingpins. A lot of his tunes are played with wet tuning which is a real kick -- the way he plays -- similar to Geno. So really the tuning preference doesn't have anything to do with the best reeds to use for Bb. Sorry I got out of the thread -- but for someone considering a Bb, having one stop tuned wet offers the player that additional option. Something to consider when buying a new box. Great conversation, y'all.
I've heard the "wettest" tuning is called, "Columbian wet." An accordion guy at Brook Mays Music in Dallas, told me that. And me, also being a fan of Vallenato music, I believe it. It's just a preference... I like it wet and like it dry... it's all good... just gimme the accordion... the perfect instrument...