Why Adam, it depends....I have a 2x logged that were at least 20-30ft.
The 1st was a grounder into bushes (yes they do soften the landing).
The 2nd, luckily wasn't a grounder, as I was caught before I was going to ground. At least 20ft (hard to tell as I did a few cartwheels.
Then there was one on Pereguine. Only 10ft, but clean.
My buddy took a nice 15 footer on POD after the crux..too tired to clip, pulled up to clip and was in the air....swoosh.
Maybe Mr. Mud as a few?