I got the hose and QD a couple of days ago and hooked it all up. Before actually connecting it to the keg I opened up the tap to see how carbonation was in the La Petite Orange I kegged and primed last April. Using NBs carbonation calc it turned out way over carbonated. So much I released some of the pressure with PR valve, which scares the crap out of one dog for some reason, and poured 1/2 beer 1/2 glasses of foam. After it settles down by pouring the 1/2 glasses together then topping it off with some foam, it's pretty tasty. I know better than to use the full amount of sugar for bottling in a keg so next time I will try half as much and can always finish with force.
Not hooked to the keg the regulator still sneaks up a little but I am slowly setting it lower so it can advance to about 12lbs. I won't dare leave it on when connected for fear it will sneak up and re-over carbonate the keg.