[azapa]

over simple answer here: I use both, and often unclip whilst under if I want to go under the kelp "canopy"

It works like this:
- I have a 8MM or so diameter hole drilled in the butt of the pistol grip of my gun, about 15mm from the base, to the left hand side.
- through that hole I have two things: 1. a stainless "keyring" type loop about 1" dia. 2. A 30Cm rubber band strap made from car innertube, its about an inch wide, basically a big elastic band.
- in normal use, my carabiner from the floatline is clipped onto the gun with the stainless "keyring"
- when I go under some kelp or rocks I unclipp the carabiner and place my wrist through the rubber band
- the carabiner is quite big and sits there, I later retrieve from pulling up from the top.

A PICTURE would say a million words. I;ll send one tonight if i remember.

THE MOST IMPORTANT THING: the wrist strap MUST break if anything gets snagged down there. Hence the rubber band. I guess you could dry test its breaking strain (I have not done)

Good fun eh!