Well I got the regulator together and pumping with no leaks at all, the perma seal thing is sweet as you don't have to crank on it so hard but I'll check it daily for a while. The CGA-320 nipple is a little short so I had to tilt the unit a little so the tank valve wouldn't hit the high pressure gauge and the needle valve is sweet with full control over your flow rate, also I have never had a solenoid on my regulator and would set it daily (twice) so that's super convenient.
I also got pretty lucky as this is a Parker IR6000 series and it's hard to say what they price out for but the best I can figure it's around $1,100 so I got real lucky for $65 shipped, however the low pressure gauge does stick a little.
