I have the Tonybee and Lowry techniques down as well beyond Valsalva. I've also had success with moving my jaw, just swallowing, etc. But I'll have to give all of these a go underwater to see which I have the most success with.
Brett, I also have the same issue with my left ear, at least on the surface. Ultimately, both ears click, pop, open, etc. but it takes my left ear a few tries whereas my right ear just takes one. I will definitely keep this in mind when I dive and make sure I get a result in both ears.
@SlugMug I'm saving a couple hundred buck by combining the classes. I figured why not but if it's not recommended I can always change to the open water course and then get credit for the other two at a later time.
I've had lots of questions on here before and I'm sure I'll have much more once I start diving, geeking out is no problem for me