Depth protocols

The rope is your only fixed point

Every deep dive runs on a line: a lanyard to the diver, a counterweight below, safety divers staged at depth. No line, no deep dive.

lanyard    wrist to line, quick-release
bottom     the weight is on the plate, not the diver
safety     freedivers staged every 30 m
surface    one safety per diver, always

Depth discipline

You don't push past your announcement. If you said forty, you turn at forty.