headwinds blow.
usually if i have a headwind in the am i get a tailwind in the pm. but not always.
tailwinds are usually great though a few weeks ago I had a 60mph tailwind that had me coasting so fast i started to get nervous. no worries though because it quickly reversed directions and then I had to lay bike down on ground and take off my glasses so the wind wouldnt.

this vid is from that day https://www.youtube.com/watch?v=dPVZ4s7fSyc