Folks .... Carrying on from "Eastern Michigan UP says HI" in introductions forum ...... I know that a very pitch-slotted horn that has notes naturally out of tune is not the answer. My Mt Vernon seems to me, with use of some alt fingerings and 1st and 3rd slides, to be fine even after the efficiency modifications I did. I still can bull the pitch wherever I want it without half-valving. I know I have not had the opportunity to try a lot of different horns, But ..... I feel pretty fortunate.