I am in need of some advice. I am currently playing on a Conn 10m from around 1959, with a Theo Wanne Kali 7* metal mouthpiece, on Vandoren Java 2 1/2 reeds. Most of the notes in each range of the instrument are really sharp. I can get these notes in tune if I am looking at a tuner, but I need to be able to keep them in tune without having to have a tuner on my stand nonstop. I get them in tune by adjusting my embouchure, but I have to adjust it a dramatic amount. I have the mouthpiece pulled out about halfway up the neck, and if I pull it any further, it does not get a good seal on the neck. I have taken the horn to a technician, and he found that a lot of the pads are leaking. Can the leaky pads affect my intonation? If it is not the pads, then i suspect that is is just my inability to get in tune, so I am still working on that. Any suggestions on exercises to work on intonation? Thanks.