Well, y'all, I've only done one parachute descent....wouldn't exactly call it a jump.
At the Hereford club, about 1985.... under a circular chute that was opened automatically when they pushed me out the door of a perfectly serviceable airplane.
And we wore a pack on the chest, which was the emergency chute....the instructor told us it was actually full of old socks....
But when I looked up at the canopy, I wondered if I would need to pull out the old socks, because the strings were twisted.....lets see, first we had to cut off the primary chute, and then....and then....and then....the strings untwisted, so I didn't have to do anything except impact terraine and fall over backwards.
They asked me if I would like to do another and I said no thank you very much, its a lot of kerfluffle for less than two minutes in the air!
But at least I know it should work OK....