I did a single static-line jump (old style round chute) once many many years ago with two other mates out of a C182. I seem to remember the pilot saying that if anything major happened above 500ft (might have been 600) get out as fast as you can, but below that you had to stay in and ride it out. He would let us know when we passed the level. The way we were sat in, it would have been quite difficult to get out quickly whatever level it was, especially if it was low, and you were at the back.