This is the first problem I had and its probably something that I did and not UV Master.
I have random stretching on the top and bottom of my UV’s. The middle looks alright. I used UV Master to create the uv’s copied and pasted the new uvs onto the model and I still get this stretching effect when I go past subd lvl 1. I tried doing it with a bunch of subdivisions prior to using UV Master but I end up with the same problem. I did a quick unwrap as an example. Any suggestions?