Was going to put this in FS modding but it isn't feesapce and TBH I hardly go in there nowadays:

1) Is it possibile to make corrections to the mesh without loosing my UV adjustments (such as if I noticed a vert/edge/face out of position) ?

2) Is there anyway to use the SNAPS tools in the UV editor ? I reckon that would be great when overlapping faces to use the same UV space.

That's it for now. I'll get some WIPS up soon if anybody wants to see 'em.

1/ Yes, but it'll impact the UV as well due to the geometry changes (UV is, I believe, effectively relative to the face)
2/ dunno - never heard of SNAPS before now... although you can definately share UVs across multiple faces.