Bump... no one uses Earth Juice in a hydro setup?

A little more information about this setup. Using 6 DWCs in a scrog is sure to cause a maintenance headache, so I have built a control bucket and reservoir to help keep my sanity. This is not recirculating... it's merely for keeping all reservoirs at the correct water level and to facilitate cleaning the system. This setup is very similar to the write up in the GrowFAQ; however, instead of using rubber grommets and fittings, I used Toro in ground sprinkler components from Home Depot. All components are 1/2" threaded on one end and 3/8" barbed on the other. Using a 11/16" drill bit, I was able to create a VERY tight fit between the components and the buckets. To be on the safe side, I added a little tub/shower caulking to the threads and the outside of the fittings.

One concern I have is light distribution in my room. I'm using the 600W MH bulb with the EasyCool 6 reflector. This reflector is very focused and doesn't have great distribution to the sides, so the edges of my scrog screen don't receive much light. This will be dealt with as the garden grows, but I'm definitely going to be keeping the buckets closer to the center to maximize light usage.