Wow, better answer than I ever imagined. I agree about the solder, I use a good old 5 pound sledge and a punch. I never had a problem with mu "crimps". Thanks for clearing some things up because I was going to make a buss bar out of copper. (was a time when I could have had a total of 50' predrilled and threaded every 2 inches).
On a different but same note, do you see any advantage to using a bolt as a terminal on a box? It looks cool, but copper to steel to copper seems like it would slow the current. Gives me an idea though...