Thanks for the replies. I'll test out the preserve UVs and going to a new editablePoly instead of reverting back to the old one. The main reason I needed this info now though is because this model I'm working on will need 2 or 3 LODs and going back to edit it and having to completely re-UV it each time a new LOD is…
I just tested it to be sure. You can indeed transfer UV's between meshes with different topology with the projection modifer. What i did was create 2 clylinders both with a different number of segments. 1 with uvs 1 without. Put the projection modifier on the 1 with uvs add the one without to the objects list. press…