I'm not positive about switching embochures yet, but if I was to start learning a new one to practice now while still using my other one for playing would it still be fine if I decided not to switch later and went back to my old one if it didnt work? Then if I do decide to switch I can just give up my other one right? The reason I'm still considering this (even though I need to do lots more research before I deditcate to switching) is that I believe my range has not increased at all since 8th grade (now in 10th)...Maybe 1 note at the most. My tone and endurance for all my notes has increased but not my range. I also think I use mostly something like a pucker embochure but it may have some small elements of a smile embochure still in there. I was origonally taught in 6th grade to play with a "smile" one. After reading lots on the internet I found that they are both faulty embouchures that in the end will limit my abilities. Also I use about 2/3 top lip and 1/3 bottom lips and play slightly to the side. I know playing to the side doesn't matter and ive heard of the 2/3-1/3 embouchure but I've always heard it as 2/3 bottom and 1/3 top. Does this effect it much? *I found one site of someones post about using this but found no other real credible information* What do you guys think? I know alot of you are against switching embochures but I really feel like something is holding me back. Especially range since I have been practicing lots more recently and spending good ammounts of time dedicated to range increase, slurs, and special excercises for it while my range still can only go up to about a G right above the staff in the middle of a song. I also feel like I am missing a lot of control with this embochure when I have more and more recently been hearing just how many tones and pitches are out of tune when I go through playing things. Anyway I'll look up more stuff later but I have too much other stuff that needs to be done now. Please give me your opinions.