I dont have half the experience you do! I started out in 2004, but most of my experience is on dirt roads & tracks.
Only recently have I been doing my best slide down a
piece of asphalt!
I still prefer dirt and off piste.
That description of your un-intended jump scares the crap out of me! Ive had similars experiences and come off. I need to learn how to jump and control those jumps.