One time my Deuce's Wild came down with the airframe parallel to the ground, and spinning like there was a log rolling competition taking place on top of it. Shock cord looked like a wound-up rubber motor when it came down. Would have needed a swivel somewhere between the parachute connection (about 6" below the nose cone) and the airframe to save me from that one, and I don't generally put one there. Made me consider whether I should, though I'm not sure where I'd put it.