I've looked through the old post in the forum to try similar thread, and it's true that Tonberry has a big group of EN players, and SecretCrowds is correct that it's impossible to move to that server because of the congested status.

I agree that as long as the group is the same there won't be a problem for duty finder,etc.. But I don't want to be the the lonely soul in a JP server not having friends or FC to chat with.. Any recommended world in the same group as Tonberry with decent EN players/ FC??