The detail map doesn't really seem to do anything, in my tests.
Terrain textures blend in this direction (lowest first): Stone --> Mossy --> Sediment --> Default --> Path
Also, be advised that it seems to be misusing normal maps for 3/5 of the texture types if you enable highest detail settings.
Gigabyte P67A-UD4-B3, Intel Core i7 2600K (passmark 8555), 16GB Corsair DDR3, EVGA GTX 970 SC (passmark 8637), Win7 Pro 64-bit SP1, Primary monitor @ 1920x1080, secondary monitor @ 1024x1280
