BTW if you cut an A050 in half (section it) you will see that the belts on the sidewall and the tread face are not contiguous, this is what generates the grip and the heat (and the A050 is not unique, a mate runs a Proddie on Hankook control tyres and they are the same and I am sure there are others, but A048R are not, they have a belt that joins both "halves")
But this same thing is also what see's the tread move around and look like it is trying to pull off the rim in seangti's pic.
But this is not bad!!! Unless you hit something or run something like 12 psi the tyre will not fall off. But it also doesn't mean you are getting the most grip, which is why you need to try it out and find out what it feels like for you and your set up.