Hey Shrubs.. I've been doing ALOT of experimenting with drip irrigation systems lately and let me share my experience with you. I've found what works best is using a HUGE pump and Rain Drip PC (Pressure compensated) fittings for each drip line. They make them in 1/2 GPH, 1 GPH and 2 GPH. Use a pump large enough to pressurize the main 1/2" (or 3/4") line and you can run it for an hour straight and get precise/even amounts of water to each plant. Another company makes a "4 line feed" dripper which is essentially a pressure regulated dripper with 4 feed lines coming off. I have a picture which I will post for you later on. If you don't use the PC Drippers I can assure you your life will be hell and your plants will be watered unevenly. The key is using the PC Drippers and a pump large enough to properly pressurize the line. You probably already know all this just wanted to give my 2c.
P.S.- The Root Excelurator is BEATING THE PANTS OFF THE RHIZOTONIC. Literally putting it to shame. Dude I'll send you a bottle for free to try it if you want. I'm gonna post you a little pic of my rhizo vs root excel in DWC and you be the judge!