| Finger the E above high C with 1-2 and see if that doesn't make it easier. Many horns play that note really flat when played open (my old Yamaha Z, for instance) so that getting the pitch up with the alternative fingering will make it resonate more freely and make it easier to sound. Also, playing the D just above high C is easier when played open on horns that tend to play that note flat.
If your other notes around the E are ok, then the slide will probably NOT help you with the E. Changing the slide is going to change the feel everywhere.
Dave |