I believe every diver should carry at least one smb in every dive. Knowing how to deploy it under water is an added advantage. How to achieve it is another matter.
I learnt it as part of tec course 19yrs ago. In those days I never seen smb was being used in rec dive but the situation has changed dramatically probably because of accidents.
I learnt it as part of tec course 19yrs ago. In those days I never seen smb was being used in rec dive but the situation has changed dramatically probably because of accidents.