RE: OUCH!!! Bench shirt
My Inzer HD Blast shirt does that as well. Also my first shirt. From what I've been told, that's basically what bench shirts do. They aren't supposed to be comfortable - There supposed to help you move more weight. However, I think that lots of talc in the appropriate areas and making sure your arms are in the sleeves properly and the sleeves aren't twisted helps. I haven't had much practice with the shirt though, so I might not be the best person for advice.