Rob9876
Contributor
That's interesting -- guess it depends on the dive operator. With my usual Cozumel dive op either my buddy or I shoot our DSMB almost every dive. Last trip I dove with a different dive op where the DM shoots his DSMB early and all of us eventually went up near his DSMB. In other places it also seems to vary by dive op.I think I've ever only seen one diver inflate their's and it was discussed before the dive with the DM that it was for practice - most of the divers I've been on boats with, by my observation, either don't have one or carry it in their pocket where I couldn't see it. I sometimes carry a SMB (not as versatile as DMSB) to be used at the surface, but have only used it once (not in Cozumel.) Can you tell I'm just a vacation diver who takes risks?![]()
It's good to have a DSMB in any event if you get separated from your group or need to go up early -- one could even need to inflate one on the surface if you get swept far from your boat to help your boat find you (and keep other boats from hitting you). Plus it can be an extra source of buoyancy in the unlikely event of BCD failure.