Lol, I saw one of those, it looked pretty horrific. One guy nearly impaled himself, another took a run up landed on a concrete pillar which collapsed and fell on him.
I should have made a fail video for you last session, lol. I overshot a jump, started to fall headfirst, arched my neck frantically away from the ground trying not to paralyze myself, fell on my chest and stomach and severely winded myself and bent up my lower spine. Nothing serious though, some cold gel fixed the spine issue
I still want to get good enough to actually do it on concrete.
_________________
'You're so cold, but you feel alive
Lay your hands on me, one last time' (Breaking Benjamin)