I just downloaded this and checked for possible conflicts. One thing that I noticed was that the BSA file contained many lod textures and meshes that overwrite Vanilla Optimized, DynDOLOD, the USKP, Vivid Landscapes and maybe other mods. I have MO manage archives as recommended in Skyrim Revisited: Legendary. For this particular mod, does that mean that you should not unpack the BSA? I already saw a comment from Sheson on the Nexus page in which he said you should not let this mod's lod files overwrite DynDOLOD, because DynDOLOD has many improved vanilla assets.
It also contains what I'm assuming are vanilla lod meshes that don't directly show as conflicted in MO's Conflicts tab, because I have never unpacked vanilla Skyrim BSA files. So I fear hiding all the lod files in the Conflicts tab still doesn't solve everything.
I'm unsure about priorities when it comes to this.. but if you keep this mod's BSA unpacked it should have priority over the vanilla Skyrim BSA files, but not the loose files in MO from mods like Vivid Landscapes and DyndoLOD, right? Is this the best outcome?
Also, there is another small thing. Under 'Texture Set' there are a couple of records called LandscapeCoastBeachDUPLICATE002, LandscapeFieldGrassDUPLICATE003 and a few others. If you use mods like Verdant or Unbelievable Grass Two some of their 'Landscape Texture' records conflict. It also makes some changes compared to Skyrim.esm. The author of Summerset Isle already posted a comment saying that you should load any grass mods after this one if you want to keep their settings. To me it seems like these DUPLICATE002 records don't serve much of a purpose though.. They don't seem to change anything compared to vanilla.
For example in Skyrim.esm the Landscape Texture LDirt01 points to the Texture Set LandscapeDirt01. LandscapeDirt01 then points to \Landscape\Dirt01.dds and Dirt01_n.dds. This gets overwritten by summersetisles.esp: it now points to Texture Set LandscapeDirtDUPLICATE002, which also points to \Landscape\Dirt01.dds and Dirt01_n.dds. Does this serve any purpose? It seems to me that instead of bothering to mess with load order you can also delete all the records from 'Landscape Texture' EXCEPT LSummersetSand01. Or would this break all kinds of things? :s
Edited by Pretendeavor, 02 August 2015 - 08:48 AM.