For the past week or so, my chops have been trembling uncontrollably. Sometimes, during the end of rehearsal, my chops would quiver a bit, but it would go away the next day. However, for the past week or so, the trembling has gotten worse with each passing day. I think it may be because I have been having long marching band camp days, and the days before these "camp days" i was heavily practicing for my regional auditions. I have had chop issues before, but I have developed new habits over the past few months, so I am really at a loss as to why this is happening. I am not using excessive pressure. I have, in the past, been in embouchure nightmares because of pressure (as you can see in my post history), but I have learned to lessen my pressure to where it is truly a non issue. Tomorrow, I will have the whole day off, and I plan on not playing at all to see if this is caused by over exertion of the chops. To be honest, I am a little bit worried because I want to perform to my highest capability and having an annoying "wah-wah" in my sound due to lip trembling impacts my tone, and it makes me focus entirely on stopping the trembling rather than making music. Also, I'll be meeting my private instructor on Tuesday and I'll make sure to bring this up to him. If anyone has anything to say about marching band: I know the toll marching band has on the chops, but I, due to previous chop issues, have become more intelligent in the way that I play. I am not afraid to lay out or to take parts down the octave, so before you immediately blame marching band, keep this in mind.