I am very happy with the result of the American stout. It goes perfect with the cool fall days. I am running it on nitrogen and finally nailed the carbonation to get good cascading pours and nice head. I hooked the keg up to one of the normal CO2 lines running at 11psi in my 36 degree keezer. Each day would hook it to the beer gas at 35psi and do a test pour. After four days I was happy with the result and left it on the beer gas.