I dont have any badges either. But the JBL shape is noticeably different than "original" therefore I think it looks better without any. I do like them on originals and the few cars out there that are successfully designed to look like an original.
It is interesting how many folks are upset if you have the side badge that says "427" and you dont really have a 427 engine in there. When I had the ERA with an original 427 SO, some random guy would come up to me at a show or gas station and say "do you really got a 427 in that thang?". When I told them yes they sort of ran out of questions and moved along