So Shizzzon got my attention with some cheap 4/0 gauge he got. I'm thinking of adding a couple of 4/0 grounds and a couple 4/0 runs from alt to my front batts. I have never worked with the stuff before. I will be upgrading my alt to a 400 amp eventually so I'm trying to plan ahead. Since the length of these runs will be shorter than 6-7 feet will there be any benefit vs 0 gauge? Is there a way to fuse 4/0 wire? Also what lugs do you use for your 4/0 wire the only ones I found have a minimum buy amount of 10?