I do the same with the compass -- bungeed to the back of my left hand. That little extra bit of wrist articulation makes the natural hand position also the best position to use a compass, it's really nice. My hoseless AI computer is bungeed to the back of my right hand. That leaves no space for a Goodman handle so I don't use one anymore, I just boltsnap lights to my chest D-rings. Overall it is very streamlined and easy to use. If I ever splurge for a big can light, then I might need to reconfigure things to make space for a Goodman handle.
Still have an analog SPG boltsnapped to the left hip D-ring, but thinking about removing it from my reg and tossing it into my save-a-dive kit. Since I don't do overhead dives, deco stop dives, or dive under boat traffic, I cannot imagine a situation where the computer would fail and I would subsequently care what the analog SPG says anymore, because at that point I'll be bailing out to the surface.