1. I'd go with sheet bend over the reef knot, and don't use that for life support applications. 2. Tie in before you get on the cliff, not while you're on the

1. I'd go with sheet bend over the reef knot, and don't use that for life support applications. 2. Tie in before you get on the cliff, not while you're on the cliff. And the bowline by itself is not adequate, as it comes undone under non-continuous load: finish it with a double overhand on the loop.