Trails bikes were faster at Angel Fire. We know this obvious fact because Shawn won on a trail bike.
N=1, thus, science.
Also, please ignore the fact that the only other guys on the mountain running trail bikes, Logan and Kevin, both got served.
I mean, why else would Shawn have chosen his 6c when he could have ridden the new 650b Yeti DH bike? Wait, ummm, nm…