I plan to have to save myself.
I do same here. Of course is with a buddy nicer, but sometimes you can't because of working in shifts and so. Then I want to dive, but I have to go alone.
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I plan to have to save myself.
When I go out alone, I bring a rope that limits me to just shy of 40'.
I don't put depth limits on my solo diving. People have drown in their bath tubs, depth doesn't count for much.
I'm more concerned about diving conditions, wind, waves, current, entanglement. Entanglement at 10' is just as deadly as entanglement at 100'.
How deep do you dive as max. solo? and the max. decotime?