All I can say is....

WOW ! ! !

Just a thought. Are you sure that you're using the actual peak of the leading edge to the trailing edge as your wing incidence line to compare the tail to? It may be an illusion of the picture but it seems like the wing has lots of positive incidence compared to the tail.

Of course nothing will alter the difference since you've been using the same setup on a number of models. There WILL be a slight change compared to the others.