I've done at least 1,000 dives with a ScubaPro Mk25 with a swivel turret. Probably 2/3 of those in cold water. Never had a problem with the turret or any other part of the Mk25. I mostly use them on our rebreather systems for offboard gas and bailout. The turret makes the hose routing much cleaner. Without the turret I'd have to add a couple of swivels.