I got to try my cutting board chest plate yesterday and it didn't go well. Water temps were mid 80s and I was wearing a long sleeve dive shirt. The plate is definitely capable, but my problem was the butt end of my gun would slide as I was pulling the bands. When it slid, it slid off the board and into my chest or abdomen area. I now have bruises all over. I did get it to load once and not slide, but it was very challenging. The surface needs to hold the butt of the gun in place with enough traction to prevent slipping.