SeaHorse81
Contributor
Some charters require divers to have an SMB and if they don't, one will be provided.
I prefer to clip off my SMB/spool where I want it, not where the mfgr. wants it.
Good thought, just not practical.
This pretty much says it for me. While I appreciate OP's intention, I think the availability and use of signaling devices is already covered in good practices by both diver and operator. The responsible diver is most likely to have brought his/her own equipment for conditions like this, and the responsible operator is most likely to require use of such equipment and have some available for loan or rent for those who may have forgotten or neglected to bring one that day.
Where unprepared diver meets laissez faire operator, no amount of built-in safety equipment is going to save everybody. In those cases, neither party would likely have opted to purchase a BCD with built-in SS anyway.