Driving around today with all my kit in the car and I hear this hissing noise like a Small puncture in a tire. Stopped to investigate and it ended up being the goretex valve in my fox. No idea if it was letting air in or out but it went on for a long time so it was a lot of air. So now I know It works and also makes me even more carful to remove the non gortex plugs from my other board. It was probably only 25degrees in the shed and the car got up to 32degrees so it doesn't take a big temp shift.