I don't have much of a problem fighting bb6s in gbs, the only thing that bugs me a bit is their retarded turn rates. Playing a bb6 in GB isn't that easy for a lot of people after all, everybody wants to rush you, and then when things fail you get a 60k rep bill. Furthermore bb6s are limited to 4 in each GB rooms so its fine the way it is for me so I'm gonna say no