I figured I owe a follow up here on my previous shoe post. I went running in the shoes on Wednesday, and I concluded that while they were awesome, the size 12 were about half a size too small. Happily, I am not stuck with them, because Running Warehouse is awesome and let me return them anyways. So now I have size 12.5 and they fit great. I went for a run in them tonight, with good results. I really don't think I'll ever go back to more conventional shoes, these feel so much better. But I also don't think I'll be running anything more than a 10k any time soon, as I'm definitely feeling that my body needs some time to fully get used to having less support.