I did tank in WoW back in WotLK but this seems really different and I like it.

Also, does it generate more threat to use the 2nd combo piece when getting ripped from rather than the whole combo, IE say I'm ripped from, I use Tomahawk to close the gap, then should I use Skull Sunder, or just go through with the whole combo starting with Heavy Swing? This is when I don't have Provoke yet.