Thanks for the comments, everyone. I'll write a fuller response to the tech/no-tech debate later ... meanwhile here are some race photos, including one of post-race foot trauma, especially for CC5, and yes, I had a blister as well.
Oh, and I meant to mention that as I was starting in the green wave this year, it seemed appropriate to wear the Almeria finisher's shirt, too. Fetching, I thought. And probably made me go faster!