Hi Manny, For the last couple of weeks I have been working on getting the main slide in. I read your post to me and have tried everything. In my post about range with the "E" thing, that was for the corners not the tongue. It took me a while to understand what you meant about using "E" in the extreme upper register. I can do it now but I had to change my embouchure a little. I found that I have to push out my bottom jaw a little more. It's a slight change in the jaw but a huge change in pitch. The only trouble I have now is that I get tired more quickly. I was playing the other night and I got tired and the music was hard and all of the sudden I was way sharp. I adjusted and the pitch went down. The only draw back to this is that I was using a B flat mouthpiece on my C trumpet and now I cant, or if I do the slide is all the way in. I talked to tom about a new C mouthpiece the other day.