Sorry if my comment about the Great Lakes confused anyone. I don't fish. Since someone asked I figured it might be a local thing. Guess not.
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My understanding from this part...If it was at 30', how did they get up to 2'?
Is that they hit a tangle of steel fishing line at 30 and the rescuer tried to fight their way up anyway, dragging & stretching the tangled wad to 2 feet before they were stopped - then wisely starting cutting.At 30 feet they hit a **** ton of stainless steel down rigger cable. The entanglement ripped the regulator out of the victims mouth and tangled it. At this point both divers were entangled, but the rescuer chose to try and pull himself and the victim up the mooring line. (A mistake). As the down rigger cable tightend around them in several places, they became more entangled and were held fast 2 feet from the surface.
If you don't own the EMT Shears you can buy them at an LDS or some retail outlets - stainless shears are what I carry as well as a knife