Was huffing and puffing clearing a fouled prop, once free, I felt a little off (I really, really, really don’t like CO2), signalled and bailed out. We were nearly done the dive already, and fairly shallow..
_R
I've had to cut a prop' free on OC. They had me on a safety line under the boat (2-3m), in a tide. I almost emptied a 12 litre cylinder. I physically couldn't get up the ladder by the end. I would have hated to be on CC.