I realize that this particular topic has beaten to death on numerous occasions, however, I wanted to note my experience and admit that minds can be changed.
my trailer queen DEMO cub was 6V when i restored it about 8 years ago. Correct police and all that. I noticed lately that it was rather lethargic in starting and running poorly. Oh, and the battery gave up and the generator stopped generating.
Well, since it already had a distributor and i had a Pertronics 1442 in the drawer, it was time for a good tune-up. runs way better now. just don't leave the ignition on.
Bill, welcome to the 12V club!