There are good reasons to sling your pony on the left side. One of them is to ensure that your long hose is easily deployed. When using your pony reg, the pony hose is looped round your neck.
Computers are wrist/arm mounted (vs console type) and worn on the right arm (vs left arm whether you are right or left handed).This setup has 2 benefits.
First, it allows the diver to very quickly monitor depth, time, NDL/Deco, etc, at the "flick of the wrist". Second, buoyancy control is better managed - left hand controls the BCD inflators/deflator and right arm (with computer on the right wrist) allows the diver to check his depth and other vitals.
While there are other ways to configure your gear, what I just described is the standard technical configuration. It works. Even for recreational diving.
Computers are wrist/arm mounted (vs console type) and worn on the right arm (vs left arm whether you are right or left handed).This setup has 2 benefits.
First, it allows the diver to very quickly monitor depth, time, NDL/Deco, etc, at the "flick of the wrist". Second, buoyancy control is better managed - left hand controls the BCD inflators/deflator and right arm (with computer on the right wrist) allows the diver to check his depth and other vitals.
While there are other ways to configure your gear, what I just described is the standard technical configuration. It works. Even for recreational diving.