Howdy, I'm obviously new to the STEP
community. Anyways I just thought it might be beneficial to point out a few things.
NVIDIA users ONLY! Improves Anisotropic Filter quality if you force AF from your NVIDIA card. If you are not going to force AF from the video card (see 1.E.1. NVIDIA Users), do not use this tweak, and leave it to 16!
You recommend ENB, but on the http://enbdev.com/doc_skyrim_en.htm
web site, he recommends to not force AA from the driver. This is confusing for me because I don't know whether AA is taken care of with ENB(through SMAA?) or through the launcher video settings. For instance Project ENB and Ehanced Vanilla ENB don't have smaa.dll but Countervibe does. And also TweakGuide is recommending AAx4 or 8.
On a different matter you talk about:
Together with setting shadow quality set to High in Step-1, this tweak will improve shadows resolution at a huge performance cost. Shadow quality on Ultra already sets this to 4096.
On my machine, if I set shadows to Ultra(4096), my FPS plummet on zoning out of an interior cell randomly. I can correct it by alt-tabbing out and back in or avoid it altogether by setting shadows to "High". At first I thought I had tried to pushed my system too far, until I sharted using fraps and discovered the pattern. I may be missing some fix I haven't been able to find and if I am please let me know what it is. I just thought it might be worth mentioning(it's a known issue btw
I have a couple of suggestions as well and they are worth what you paid for them ;)
You might consider having a logo for a good housekeeping seal of approval that modders might add, it would benefit both parties I believe.
And since Wrye Bash seems likely to become more of requirement in the not so distant future, having a bcf repository might be a good idea.
I'm really tired and hope I haven't come off too dry or critical. I appreciate all the effort you have gone to and look forward to installing the recommended mods. If I find anything else I'll try to report it along with a possible solution.