On Sat, 17 May 2008 16:42:39 -0700 (PDT), Bob
wrote:

I hear it works well. But after seeing how the non tinned existing
cables got all puffy at a nick I can see the advanges of all tinned
wire.

Welding cables must be very flexible, so they are made of a zillion
very fine wires. This gives them a maximum surface area to corrode.
The ends of any marine cable have to be covered with waterproof
plastic, either something you paint on, or a heat shrunk sleeve.
Otherwise salt will crawl into the cable from the ends.