Ok not sure if this has been covered before so sorry if it has.

I haven't played mnk much since v1 but I have been tinkering with it lately and also leveling it on a new char. But since it is so position dependent I was wondering how everyone handles dancing tanks. I never noticed how often tanks move around til playing mnk and trying to get positioning. Some tanks just spin circles around mobs or constantly move them around when they are in large groups. Is this normal or is it just troll or bad tanks and how do you deal with it to maximize your dps?