At the time I thought, "oh c'mon, mountain biking isn't that crazy." Now that I've been down the trail he was talking about — the one that heads down from just east of the cell phone tower — I see what he meant.
Holy crap, that was a steep trail. If you don't have any poles with you, do yourself a favor and go down "Cannonball" or "Skyline Road." But if you want to get downhill FAST (1300' in 1 mile), try this trail! I admit I was sort of enjoying myself on the lower sections that had banked edges for controlling my turns...