I need to try to get to these sites on my upcoming trip. Northernmost site I've dived is Villablanca Wall. My usual op doesn't go further up than that. Maybe I need to book a couple days with Aldora so I can do some check dives with them and then hit these.
I always dive with mirror, whistle, dsmb, and a 24h strobe light, but don't have a PLB. After reading about how they didn't even get planes in the air for over a day after the Scubaboard member went missing on a solo dive, I wonder if it's even worth it. Would a PLB signal make them move any faster? Or is your battery gonna die before they get around to looking for you?
Went the Mau boat sank mid channel, they got one call made on a cell and everyone and their brother was on it toot sweet. Including the Russian yacht "Ice", I think. They had their own helo and SAR training. 'We find people, then drink vodka, no?" If I remember, they scooped some and the navy got the rest.