I took this setup a step further by adding the front pressure regulator from an Autococker paintball gun. I haven't measured the output pressure yet but it makes the setup a whole lit more controllable than trying to just use a valve. I had to drill out one end, tapped it and the secured my valve with JB Weld. Its been running on my ten gallon for a couple days now and has held steady at one bps.
Best part... it only cost me $5 for the regulator off eBay!