I dunno, but I'd sure like to hear a review of the Pro-Ear mask. Does it really help equalizaton? Tell me all about it!
With regards to the Pro Ear 2000, the extra layer of air into my ears does make it just a bit easier to equalize (but it's not the ultimate solution to equalization), but I have noticed that I have to either wear the mask a bit tighter, or push up a bit to get a good grip on my nostrils to do an equalization. It really will keep your ears dry if you wear the seal just right, but jerky or unusual head rotations can pull the seal up a bit and let water in. Not a problem, if that happens, just press against the top of the ear cups and blow through your nose and you'll puff the water out.
Visual clarity's stellar, and this thing hardly ever fogs on me. I tend to put on a drop of antifog on both lenses before I go in the water and it literally lasts me the whole day.
I find it VERY easy to clear the mask if it gets flooded, and if you're one of those kinds who likes to breathe in through the mouth and exhale from the nose, it's really easy with this one (and even works with the earcups). Word of warning, though: you really should put it on with two hands if you can. The earcups need to be positioned just right to get the seal to work properly.
If you get ear infections or just don't like getting water in your ears, it's not a bad mask. I may make my alternate one of these cheapies, or maybe one of those color correcting ubermasks.
Edit: They make a claim about being able to localize sound easier with the Pro-Ear. From my experience, that actually seems to be accurate. Underwater sounds are amplified and I guess the parabolic shape of the cups make it easier to locate them. But on the surface? You'll feel like you're in need of a hearing aid. I had to lift the cups every time my instructor wanted to tell me something from a distance, because it muffles everything otherwise.