I'm working on getting my slip slurs as clean as possible. One thing I notice with accomplished players is that there is an uninterupted transition from one note to the next when doing lip slurs. Take 2nd line G up to 3rd space C, for instance. When I do it, there is an instant where the is an airy sound ("hoo") between the G stopping and the C starting. Also, I notice with good players that with a lip slur down (again, say 3rd space G down to 2nd line G) it sounds like "tee-yah" . . . not "tee-ah". There is a very distinct "y" pronunciation, especially when doing the slur quickly or lip trills. My point is, it's very clean and I hear NO air. I've been working hard trying to get this right but I just can't seem to get it. I'm convinced this will be a sizable step in my playing overall and also my tone quality. Thoughts would be appreciated. I'm fairly certain I'm using good air support.