For those of us who only used Argosy's for jumping out of (after enjoying the downwards hatch in the floor of the Beverley's boom) the problem was the curve of the door, if you were No 1; you had to lean forwards to get a hand outside each side in the approved fashion, and would nearly overbalance while waiting for the green.
What I'm waiting for on this thread is the admission/confession/abject apology from the navigationally-challenged Argosy crew who offloaded quite a few of us into a muddy estuary one night instead of the DZ........ I bet they're still laughing.