well, i know what the frenzel technique is, but i forgot the valsava technizue. theres one where you pretty much swallow, i think thats the valsava yes? but theres another one that is basicly a cough, and its generaly pretty sharp, and can damage the eardrum if done improperly. i have managed to do the "coughing" technique, i generaly do this at the bottom of the pool (the pool is 10 feet, and i like to dive to the bottom without equalizing, it seems to make my eardrums stronger, as well as my hearing worse

.) so ill do it when i feel the need to instantly equalize, especials when im a bit behind.
but my favorite way is actualy to simple open my eushachian tubes, i forgot but is the eustrachian tube the "1 way valve" or is there another part that does that? well either way i have learned to do it. you know when you yawn you feel it open (thats whay it pops your ears on an airplane)? well alot of people cant volountarilly do it, but i have learned how, and as the air in my lungs and throat gets compressed, it instantly equalizes my ears. generaly i dont do it because the muscles there arent that strong, and i have really traind them so i get tired of it quickly. but its good when im trying to be streamlined and have no noseplug (usualy when i swim laps underwater, as i go down to the deep end i often use this technique.
i like it, but its tiring, so i guess il train those muscles, but generaly i like to use a noseplug because it seems to ease my urge to breath.
-Matt