So my example above in blue showing my small buffer to be 198, is really just 198 points of damage. That's 1 swing from a barb, and 1 spell from a sorc, to pull the aggro back off you. Not sure how viable that's going to be, even with a S&B tank swinging away. You will eventually lose aggro before the next intim is up to the person that pulled it from you to begin with.
I'll quote myself so no searching is needed
PS - This does mean I'm shelving my intimtank, and or re-rolling him to a hate tank, either way, he can't do what he was designed to anymore. You can say goodbye to all S&B Intim Tanks with that ratio, everyone pull out your THF weapons on raid bosses.