OK, so these things have been out for a while. Last summer I did a large percentage of my running in the 5.0s, and I'm thinking of picking up a pair of these. If you're running in the 3.0 and have had a chance to put some decent miles on them, what do you think? Do they breathe any better than the older models? How about durability? My last pair of frees would've lasted forever, I think, except the little piece of spandex at the heel wore out. Anyway, thanks for the input.