Me too, Pooks -- but those first couple of miles, my parts are loosening up, my lungs are just waking up and starting to breathe, etc....
In fact, I think the first three miles are the hardest of any ride for me! DH thinks it's the last ones, but I just slow down on those -- I still feel great!
(DH likes to go early, and I'm not a morning person!)
Karen in Boise