You can only have 4 leased tuners, which is 2 ViP622's. Any more must be bought.
If you have a DPP44 switch, it will handle 4 622's which is eight tuners, and you can cascade another switch or two, I believe the max tuners would be 24 out of 12 dual tuner receivers.
Now you are out of bounds,Because he does not what he is talking about does not mean all Installers are the same,He is wrong callings names and he s idea of the TV 2 and HD distribution,But so are you putting all installers on the same category and say we also are Nasty too,Totally uncalled for.