Eric,
As far as I know, there are basically 3 different A/C systems that are typically used on the RV-10 which have an engine driven compressor. There is the Airflow Systems (which I have), a clone of the Airflow Systems package by South Florida Sport Aviation, and Flighline AC. The primary difference is that the Flightline system places the condenser inside the fuselage and so requires and extra fan to move air through the condenser, while the other two place the condenser in a scoop on the outside bottom of the fuselage.
There is a recently installed SFSAviation system on Joe Waltz's 10, a Flightline system on Robert Skinner's recently completed 10, and an Airflow Systems on my recently complete 10. Joe and Robert are both based at Conroe airport, and I am at Sugar Land, so all relatively close to you. And I think all of us would be more than willing to talk to you about our experiences with our respective A/C system installation and operation. We are also all members of EAA Chapter 302 which meets in Conroe on the 2nd Saturday of each month.
Feel free to send me a PM if you want to talk, and I can then give you my phone number.
Cheers,