Yes, it was great flying at cloud base in a t-shirt. Such a change from what we wear flying here in CO. Of course it helped that cloud base was only at about 8,000' MSL.
The head rest comment was at the end of the longest flight of the trip (and only the second soaring flight of the trip) so my neck muscles were not used to flying that long yet. It was nearly 3 hours and 70km.
The topless with the big white logo on top (Oh Shot!) is Rudy Gotes from Mexico. He won the comp that started the day after we left. Super nice guy. The Undersurface says "Love Energy". Apparently the sponsor is some sort of Mexican Viagra. Go to the main page of the Wills Wing website and see the picture after Zac Majors. That's Rudy launching at Valle de Bravo.
The other two topless gliders are Dustin Martin and Yoko Isomoto who took 2nd and 5th respectively in the same comp. The other U2 is of course Charles. Charles and I flew with either Dustin or Rudy each day and Yoko flew with the other one each day. She spent the week getting ready for the comp.