(This might get a little long, sorry)
SWB continues to be one of the largest causes of death for us freedivers:
Much research, discussion and design have gone in to developing great new equipment like:
1. Dr. Maas's FRV.
2. Freedive classes that teach SWB prevention
3. We continually warn each other to practice safe freediving techniques like one up and one down, dive your limits, etc, etc.
All of these methods can be beneficial to prevent SWB and/or rescue freedivers. If one spearo is saved because of a FRV or a freedive class or freedive buddy system then I am all for it. What I would like to present is a method I thought about and started using a while ago. It seemed to simple to work, but so far it has worked great for me.
Simply put, I hook my clear float line and float to my weight belt D ring with a big easy unsnap SS carabiner.
My system has worked for me because now:
1. The boat captain and my dive buddies can see my float and where I am.
2. I can quickly unsnap the float line from my belt D ring and snap it onto my gun if a big fish starts to spool my gun reel
3. The 50ft clear 600lb florocarbon float line does not scare fish. This is then attached to a 100ft float line with a float on the terminal end.
4. If I do SWB, my buddy (or boat captain) can quickly/easily find me (in any viz) and can pull me up (from any depth) to the surface without leaving the surface himself. (Steve Barnett was hoisted to the surface and saved from a SWB years ago).
hope this helps
your positive and constructive thoughts about this please