Any advice on the use of the Morebeer Deluxe Counter Pressure Bottle Filler? I'm guessing that I leave the keg connected to CO2 at serving pressure of around 10psi. Connect CO2 side of filler at also around 10psi. Turn on the CO2 on the filler with a little flow and insert in the bottle sealing with the cork. Adjust spunding valve so the gauge reads 8psi. Switch to the beer side on the filler and fill to the top. Remove filler and let foam rise to top and cap. Do I have the pressures right? Seems like the beer will not flow unless spunding is set less than the kegs CO2 pressure?