So I just bought a Cronatron CW2032 regulator, and I didn't pay enough attention to the gauges. The input max is 400 psi, and the delivery output is 30 psi. It says 400 max on the engraved writing on the body. I thought it was 4,000 psi. So there's no way that I can just change the gauge to a 4,000 psi, is there? Looks like I will have to return it. Sucks, because it's a beautiful shiny new regulator. Any hope?