Thanks for the feedback. I think I'll hold out until the new ones come out. I know the local rep so I'll see if I can get some inside info.
By the way, I won them in a half marathon and was wearing Asics Hyperspeeds. I got a couple of blisters and my calves are a bit sore, but I think it is mainly because I really only wear them for races. My everyday trainer is a Nike Structure Triax...very different! I ought to get my legs used to them a bit more.