“Furthermore, one must *get out of one’s own way*, so to speak. People waste a lot of energy on their embouchure and cause themselves more problems than they need to have. All the strength you need for your embouchure is already there; it is the sensitivity and awareness that must be developed.”
-Richard Tabnik (from his lessons with Joe Allard 9/79 to 6/83)
After playing for a while, that lesson really makes sense.
I used to hurt my bottom lip playing too long, probably because it was too tense.
Now my embouchure on saxophone is more relaxed and I find I can play for much longer.