Everyone has different "secret" styles of riding across the desert fast. Bud Ekins always said get way back on the seat and let er rip. This fellow seems to be taking the opposite approach. I know when I'm off road, I use a whole lot of body english. Had a crowd watching me once. Thought the were marveling at my skill. Later some kid told me they was talkin' bout calling the paramedics cuz it looked like I was having a seizure while riding the bike.
