GLA Regulator vs. CO2 Art
I am cutting my teeth on an Aquatek dual stage regulator, and I am finding that I want to upgrade due to slight issues with the metering valve (way way too touchy) and some fluctuating output pressures. I use GLA products (PPS Pro, bubble counter, diffuser) and so they were an obvious choice, but I have also learned about CO2 Art. The GLA units look very nice, however unless you are willing to pay $500, you get a single stage regulator. CO2 Art has a unit which is dual stage and has a precise metering valve for a fraction of that cost.
I guess what I'm looking to find out is what kind of quality is CO2 Art? I know you get what you pay for, but there is also a consideration for value. What are some of the differences between a $100 regulator and a $500 unit? What drives people to make their own regulators?
Thanks for taking the time to read this and answer my questions!