Hey FoAS, just spotted something. The Wolverine has a saucer deflector doesn't it? Why use that when the main unit is just as good? On top of the other additions, maybe subtle changes to the deflector (Alternate colors, interior structures) could indicate that the unit is up-powered, instead of adding an additional dish.
On top of not liking those oval deflectors :\ I held that usually a deflector is designed so that it is adequate enough to cover the cross-section of the ship when travelling through warp. Mirandas don't have that big of a front profile compared to the Constitutions, so the secondary system it uses was enough. Same with the Constellation, and the Oberth had an interior model. I think in the Intrepid's case, either the designers felt the ship needed the extra redundancy, or the saucer was too far forward for the main deflector to cover it. *shrug*
Just wanted to comment on that detail. Hope we can see more of these ships soon, that connie is the most perfect rendition of the ship I've seen (Matching WillDecker's work).