Personally I think cross server SWB is good, as even fighting people who are stronger than me is better than not having it at all. Also I'm glad that GNW Kiba is sign in as I just started in march so I don't have a lot of the sign in ninjas. If I recall correctly last month people were complaining about GNW shino and said that they would rather get GNW KIba, so there you go.