What about the wooden "Roller Coaster" at Blackpool Pleasure Beach? That ride has some good airtime and absolutely no restraints, buckle, straps, bar, or seatbelts to hold you in. Also, Leap the Dips, is an easy coaster to get stuck(cars stops) on during the course of the ride, but it's not that dangerous to crash at 9 mph.
On Revolution at SFMM, I was in the front row far left when on the helix/turn by the fountain a large branch came at me and my left two fingers on my left hand were bloody! It hurt like a mother!
Hercules is pretty dangerous if you have a bad head. I remember my first ride on Hercules, ouch, ouch, ouch,ouch
-----------------
Kevin is a coaster freak.