which on is real copper?I vote that one it will be thinner but have the same conductivity. aluminum wire sucks expands and contracts comes loose over time. Its a fire hazard.
need to add a spot on the poll for welding cable with a good jacket. cheaper and better
The KLMX IMO is very stiff. I have both and the Hyperflex is just awsome. Another wire that is pretty good for the money is Stinger Pro... Almost as flexible as Hyperflex