OK, this could be a can of worms, and I probably should ask my teacher about this, but my next lesson isn't until next Thursday . . . Do you, or more to the point should I, use the 1st and 3rd valve slides to bring things in tune during Clarke's Technical Studies? The reason I ask is: 1) My previous teacher had indicated that we really don't worry about that on short notes. Now that could have meant (for now), or it could have been more generalized to indicate that it's not practical if you are moving quickly as we are intended to do in the technical studies. 2) Playing through the studies, I have noticed, in particular that C# (below the staff) is way off, other notes (D) may be as well, but the C# stands out. It's really started to grate on me, so last night I just "kicked out" the 3rd valve slide for everything below the staff - which seemed to work, although I did not check with a tuner. 3) It seems like the approach above might be applicable, but that to adjust the slide for every note in something fast like the technical studies (Might) be impractical, but . . . 4) The flip side of that is that isn't the purpose of doing the technical studies to build up such skills, and to learn to make these movements/adjustments, and coordinate all that with our air etc,.? In which case, what's the right approach for fast passages through a series of notes that tend to be out of tune? 5) I could "lip it" into tune, but I lack the control to do that - certainly at any kind of speed, so that seems like that would not be appropriate either. . . I know it might sound like a silly question, but in truth I never even used the slides as a kid, so never learned to use them (except to tune Ab on a soprano bugle, but that's a slightly different beast).