Another thing to note: We have not been able to successfully stagger mobs on the house of death side of windy with this pattern, or at all I am wondering if those can be staggered?

We have no issues at all staggering any mobs near the AH or shantotto's house with the stagger pattern we have discovered for dynamis windy.

In theory you can only stagger some of the weaker mobs, the stronger mobs (check T to 90+ around the new NM spawn locations) can't be staggered... at least we haven't been able to. Maybe its on purpose to stop people from camping Nms and coins at once?