In college I used to hang aroung with guys (and girls) who did things like that: Base jumping, free-soloing and the like. From the outside looking in it seems nuts at first, but at the end of the day it's really not as crazy as it first appears.
My favorite section of the TT course is Ballacraine to Handley's Corner, you're under the trees and it flows very nicely - almost like a race track. At Cronk y Voddy there's usually a crosswind that gets up under the bike and it's a hard not to become a passenger waiting for the bike to settle back down. Then three lefts before Windy Corner on the mountain section is awesome when you get it right... And frustrating when you don't.
