Packhorse:Well if I am solo then I would prefer mounted. Im never going to hand it off to someone and its easyer to kit up by myself as there is no one else there to hand it to me when I have entered the water. I think slung is a bit arkward when doing a back roll entry or donning BC while in the water which are the two methods I would use when diving on my boat.
When diving with someone else then slung maybe a better mounting option.
Like most things in life there is very rarely one right way to do things.
I see,,,,I guess I am so used to handling deco bottles and started with a slung pony,,,I kit it dry,,,back-roll/giant stride/tec drop....all the same to me...but you are right--'rarely one right way to do things'.