Can't believe this hasn't been linked to yet. I have my thoughts. Discuss/Speculate.
http://www.vitalmtb.com/photos/member/Beech-Mtn-Nationals-2011,2641/Andrew-Mueller,24187/LeSueur,9984
http://www.vitalmtb.com/photos/member/US-National-Champs-tracks,2639/Pro-Track,24167/motomike,1071
http://www.vitalmtb.com/photos/member/Beech-Mtn-Nationals-2011,2641/Andrew-Mueller,24187/LeSueur,9984
http://www.vitalmtb.com/photos/member/US-National-Champs-tracks,2639/Pro-Track,24167/motomike,1071