I purchased the 6 port Duotight regulator board with valves. In the instruction picture they have the Ts at top, then the valve before the regulator and finally the check vavle. All connections are shown as about 3 inches. Then on the keg side you are to use the necessary lenght of line to reach your kegs. See picture below.
My question is why can't I put the shut off valve and the check valve close to the end right before the quick connect? Anyone who uses one of these boards please share your experience and opinion.

My question is why can't I put the shut off valve and the check valve close to the end right before the quick connect? Anyone who uses one of these boards please share your experience and opinion.