Re: What sailing knife do you use?
Oddly enough I had a coupe of extra small good Solingen steel kitchen knives, so I made a small belt sheath for a paring knife, drilled a hole in the handle for an elastic wrist lanyard, and that's my sailing knife. Use in the galley is forbidden because I keep the blade mercilessly sharp. Works with one hand, either hand, and holds an edge that will part any taut line without pushing on it at all.
And it was "free", just had to take it out of the draw.
Of course in a true emergency, I could always dine with it.