I mostly play tenor (Conn 10m) in a couple of bands, but started on alto 40+ years ago and still play around with them. I have acquired a Dorfler and Jorka alto (Keilwerth clone) and it has a lot more resistence than other altos I've played. Using the same mouthpiece setup, I can tell a noticable difference between the DJ and an old Olds Parisian Ambassador, the latter being so much easier to get the reed vibrating at all volumes. I get a good tone out of the DJ and it subtones well all the way to low Bb, but still takes a lot of air support on the reed even when playing softly and lots of air through the horn to play it loud with a big voice. There is resistance even playing the palm keys so it's not just a leaking horn. I switched necks between the horns but it didn't fix the problem. While I can adapt to this, it's kinda tough coming from the Conn tenor that is so free blowing. Any ideas on how to lower the resistance of the horn, or even what causes it in the first place? Currently using a Meyer 5m, also have a Brilhart 3* mouthpiece. Are there other pieces that would lower the resistance? I know I can get softer reeds, currently using Vandoren Java 3, but have used 2 1/2s with the same result and much softer would probably sound horrible on these pieces. The horn has pretty low key heights, but not much adjustment without bending the keys and I doubt that would help. Suggestions and comments welcome.