Yes mate. In my 20+ years of riding dh I've never broken a collar bone, let alone my spine. I put this down to learning to fall properly doing breakfall drills in jujitsu. Side fall, and diving front roll being the main falls used in mtb. Side fall involves not putting hand out and distributing impact across whole side; good for loss of traction fall on corners, skidding out sideways. Diving front roll like a commando roll for going out front over the bars.