I have owned a few Mark VI's and played many, many more and some are great, good or even some are bad horns. On the ones I loved they all had their own little quirks. My favorite of the group I've owned it was a bit flat on the low C#. This wasn't anything to worry about because I just adjusted to bring the note in tune. My biggest complaint would have to be how much maintenance had to be done on the horn. We love our Mark VI's otherwise we'd sell them and never buy another but even with this being true there are things about them we wish were better.
What things bother you about this horn or what would you love to see improved if at all possible?
What things bother you about this horn or what would you love to see improved if at all possible?