On my last trip I was having trouble equalizing after the first day doing my normal Valsalva every few feet. I was really stuck on one dive at about 15' while everyone else was descending. I tried to remember other techniques and the jaw wiggle somehow appeared in my head. I tried it and to my surprise it helped immediately.Remember that there are three methods to equalize your ears and sinuses: Valsalva [pinch and blow], swallowing, and moving your jaw from side to side. USE ALL THREE methods, combine them, go from one to another, but USE ALL THREE.
For the descents on the rest of the trip I was a jaw wiggling fool (along with pinch and blow). I'm sure I looked like I was having a seizure, but I didn't care.
I'll add some swallows next time.