Okay, I've mocked up several other roll-bar/pylon configurations and just focused on that for the moment since I'm pretty set on the basic shape of the deflector pod.
You may want to click on the image to be taken to my Flickr page, where you can then click on the image again to zoom in for a closer look/
A. Is what I settled on last night, which I still think is my favorite, for the reasons I'll list below.
B. Is last night's initial exploration, with secondary pods on the corners where the pylons meet the roll bar. This one is most like TMP Miranda.
C. I basically did this straight pylon configuration just to show why it
doesn't work. If the pylons are going to connect to the sides like this, this straight configuration just doesn't "grip" the sides very well, nor is it particularly attractive.
D. A requested "swept forward" pylon, which I don't believe works or is as striking as the "swept back" look.
E. Straight aft edge of pylon with swept forward look, which again I don't believe works particularly well.
F.
@aridas sofia's suggested "Klingon D7 Pylon Configuration", with straight angles without any bends.
G.
@Rekkert's "Original Shuttle Concept Pylon Configuration". It's not bad, but I just don't think that shape language jives with the rest of the ship very well.
As of now, I'm leaning towards "A", "B", or "F". Honestly I like "A" the most, but I may be biased since it's what I
want it to look like

. "F" isn't bad, but I think the hard-angles clash with the rest of the ship a little too much, and the smooth bend at the corners of A complement the soft lines of the primary hull a bit more. "B" isn't bad either, but the pylons angles are almost exactly the same as the TMP Miranda, which is why I prefer A because it's a slight departure with it's straight upper aft angle. Actually, "B" is closest to the TMP Miranda of all these. If I go with "B", I'll replace the roll bar with a straight one rather than one with the slight bend, as pictured. I could take or leave the smaller pods on the corners. "C", "D", and "E" are all out. I'm glad I explored "G" a bit but it was very hard to make that shape work and the resulting roll bar is too wide. Even though the pylon has a very "Jefferies" shape to it, I don't feel like it shares the same shape lineage as the Enterprise.
Man. I'm really itching to move past this part of the process! I have to say iteration is not as fun as I want it to be!