well, not really...
but check out his tech article on the Princeton Tec Switchback lights line up.
the thursday of sea otter, i was invited by mr kline from princeton tec to ride along with some magazine editors/writers -- one of the them was the famous lennard zinn, author of the classic Velonews book "Zinn and the art of Bicycle Maintenance".
lennard is a well respected authority on all things bike related and is a fan of 29er's (did an article with cameron chambers a few years baack).
check it out.