Okay...for a while I thought maybe the problem was my mouthpiece, so I've switched. Things DID improve, but I'm still struggling with intonation.. Most of my notes above the staff go sharp, most below go flat. My low D, while sharp as is the case on all trumpets, is not nearly as sharp as it is for most players. My D is flat, my Fs and As are sharp, and on and on.... I'm sure much of this could be improved by forcing myself to remember "tooh" instead of the "ah/ee" crap I used to do...but still... Do you have suggestions for someone who wants to work on his intonation and improve it? Sure, a valved instrument is fundamentally disposed to having some problems with intonation, but it seems for me I'm always higher on the pitch when above the staff then those I'm performing with, and lower when below the staff. Are there excercises that might help get me where I'm more "in-tune" when I play? Right now I just practice scales with a tuner...any other ideas?