Hey kudos to all for your kind support!
Let me say that with regards to flow, the tank has a false back which runs as a trickle filter passing water on the return thru the AM1000 reactor (275gph). I also have a Rena XP3 which is attached to that spraybar (375pgh). Water flow goes from the left to right as you noted. Add to that (2) Koralia powerheads on each side of the tank, alternating the flow thru a wavemaker. Seems like I should have more than sufficient flow throughout the tank as all plants are swaying away. I am considering adding two more powerheads to the mix but hate to keep throwing money at this thing without getting quantifiable results. (I had also considered adding another XP3 in the reverse direction)
Adding spraybars, submerged pump et al. would require a total tank teardown. What you don't see behind all those plants is a nicely arranged wall using nearly 100lbs of mixed rock. Something I'm trying to avoid if I can. There really aren't any dead spots that I can see except perhaps within the holes in between the rocks where I tend to stick the plant stems (until those darn Cichlids rip them out). I don't think without some very elaborate system, that I can remedy that.
My tank prior to the photo was not so dense. Reading all about the benefits of stem plants and having a large ratio of biomass, I tried to really fill things up in the hopes that the plants would overtake the algae. Instead I seemed to have lost nearly all that I put in including hardy plants. Seems to me looking at the tank, that once the algae get on the leaves that's when the trouble begins. While the reactor is bubbling away madly, I just can't seem to get enough Co2 anywhere in the tank fast enough which I tend to think is a big contributor to the problem. Had I had more space in the sump, I would've opted for one of those needlewheel pumps but alas my options are limited so I'm going with the UP Atomizer and give that a go. If I could get things pearling away as I see in other photos, I would think this would help scrub the algae from the leaves keeping things in check.
Anyway, until the hanging kit gets installed and the new Co2 diffusors arrive, I don't want to even think about having to tear the thing apart. What irks me is that I see similar sized tanks in some of these contests running sometimes 4 80W T5's seemingly close to the surface and those tanks are flourishing and are arranged similiarly. That is why I have to think the Co2 is the issue. I also read somewhere that plants change their feeding habits (for lack of a true description) when dosing Excel so I'm wondering if I am confusing things by adding both Co2 and Excel causing further issues? Of course, all the recent die back and organic stuff must be accelerating the algae problem. My filters after only two weeks of use, were filled with brown matter and needed a through cleaning.