I have had the Eastern Arc since it originally became available. My installer only ran two RG6 cables from the 1000.4 dish. One is connected to a 722K and the other to a 612. I would like to add another dish HD receiver to my system. Is it better to run a third RG6 cable or connect one or both of the existing RG6 cables to a DPP 44 switch? If those options are not acceptable, what is the best option for adding the third receiver?