I just bought one of these Spritech VE3 double cylinder compressors a couple weeks ago as a Gift for a friend, he Built me a new Kitchen in my house and didn't want any money, so I got him this, we tried it out on a couple of my PCP's, and it Kicked Ass, it filled the HW100 from 1700 psi to 3000 psi in about 90 seconds, it filled my Uragan tank from 3000 psi to 4500 psi in about 2 minutes, it's somewhat quiet and it stopped right at set point pressure, I liked it so much I bought one for myself, I still have my trusty GX CS2 that I use often and my SCUBA compressor for bottles, but at the price they're selling these it's worth having a spare, Mine will be here about Oct 18.
https://www.amazon.com/Spritech-Com...==&sprefix=spritech+compressor,aps,124&sr=8-3
https://www.amazon.com/Spritech-Com...==&sprefix=spritech+compressor,aps,124&sr=8-3