The M.A.D one
Si (aka Polo Trials) has been on the M.A.D Team for a few years now, running demos
at different events throughout the UK. He took the NASS Expert Trials Champion in 2003 and has a very smooth approach to even the harshest lines. You can find out more pics of the chap riding his 26" Saracen on his personal webpage

Substantial drop-off attitude...

Landing approach...

Hit and roll smoothness
Hooking the rock-ring
Landing to front, sideways...