lindner514 once bubbled...
Sorry, what does "slung like a stage" mean? I use a camera on every dive...I would be using the pony for solo diving...does someone make an attachment device, that is easy to change...and that has a built in counterweight...finally,what is wrong with routing the regulator and SPG (clipped to the regulator) under the right arm like an octo.
Slinging it like a stage implies that you rig the pony bottle as a stage bottle and attach it to D-rings on your shoulder and waist straps. This isnormaly done with BP and harness but many recreational BC's are now being made with D-rings in the locations required for this.
Built in counter weights are not available but this can be managed by differential loading of integrated weight pouches or by adding a trim weight 2 to 4 lbs) to the tank strap on the opposite side formt he pony or to a BC pocket on the opposite side. Loading your weight belt assymetrically normally just results in it rotating around your waist.
There is nothing wrong with back mounting the pony and routing the hose under your arm like an octo. Routing it over your right shoulder and clipping it like an octo is better as it is easier to deploy. Back mounted ponies are not popular with most tech divers but it makes excellent sense for a rec diver who is not hung up on DIR to back mount their air filled pony bottle.
An SPG on the pony is considered optional by most rec divers but adds a certain level of saftey if you don't mind the extra hose. I f you do not use an SPG, you should use on of the smaller first stage mounted button sized SPG's to ensure the tank is full prior to the dive, or check it with an SPG designed for that purpose.