I have noticed in the last year that I have developed an air leak on the right side of my embouchure, everytime I play I leak air from that side. It seems as though my embouchure cannot hold when I play. NOW my corners are nice firm and relaxed but I still have an air leak. This is so frustrating, when I was in college I never had a problem playing I was always a strong player with a great sound. Now that I am in my 2nd year of teaching as a band director I find myself developing this problem and the worse part is that it happened in front of my students. I must say I did take some time off from the horn my first year due to the stresses of the job but once I began trying to practice some more and trying to ease my way back I found it difficult. Things I have tried: Switchin MPC's from a GR 67LX to a Bach 3C and now to a Bach 7C which kind of helps but the problem still exists. Please any help from you pro players out there or anyone who has had a similar problem. Thank You! A.L.