Hi Jeremie. how is it going?
Yes the map is baked in Sp. The Noise on the mesh is pretty confusing - its a SD3 export from Zbrush.
I am already in Production with this model - using displacements, spec maps, diffuses - all working seamless across multiple 3d softwares.
Iam not using a high mesh. I bake "from lowmesh", Polyflow is all quads.