I have been away from Skyrim for 6 or 7 months, after Steam somehow ate my entire mod directory and stuff...and saves..and I didn't want to start over.
Anyways, back now, went through STEP the last week or so and finally nearing the end and part where I start my ini stuff.  I have bad Zfighting as well, but following the link in the first post I was able to really limit it..it still had some shimmering but it did help.    I for now reverted my ini's back to default because I have other changes to make (LOD, trees, etc)
Ini file is so overwhelming ;) I am so picky and want my game to be perfect. I had a good balance in my ini before with LOD stuff and distant drawing etc etc but now that 6 months have passed I have no clue what things changed.  I know I used uGrids 11 before (I didn't play it..just tested) but for some reason now I can't even load a game if I use 11..I can use 7 or 9..but not 11+.
Anyways..hoping to find good settings for ini files. I never used nVidia inspector because I like my game without it. I like using RCRN + AA off + FXAA on. I have NO clue how most people don't like this. At 1080p using FXAA instead of AA makes no difference...EXCEPT that tree branches look MUCH smoother than with 8xAA on. FXAA + RCRN = better performance AND look in my opinion.
But I plan to mess with inspector this time and see what it does. I don't think it's going to make any visual improvemtn but only FPS hit.
Well, I rambled on...main point was just to chime in on Z-Fighting and how the fix in the first post seems to help.
For reference I have:
i5 2500k
GTX 580
8 Gig Corsair Vengeance
For the most part, uGrids 7 or 9, all the STEP mods and Ultra settings I run at 60 FPS since all the updates and new drivers..my main problem is sometimes when turning the mouse quickly like near whiterun areas (waterfalls, whiterun, etc) I get a drop to like 45 suddenly then it ramps back up to 60...it's quite annoying..not sure if that can be solved. If anyone knows what causes that, let me know! (sorry I know that's not really on topic lol..I went on a rant here)