Hey Mark. I'd have to say to forget them, at least for now.
Very nice company, people and (generally) good product. But when we ordered some from them, and they were even nice enough to send us a free sample to check out, they were BY FAR the hardest seals we'd ever seen!
I still think they make a good product, but for EB's I'd have to say pass on them for now.
Maybe they have the same issue others have, where one batch is beautiful and soft, then the next batch is hard as a rock. Not sure what the science is in the material, but the one we got from them was not even worth the time it would take to test it.
Paul