One of the other big points in the nautel article, the one that has helped me the most, is actually the part about all wires, coax, power, ground, signals, EVERYTHING, entering the shack at a single point. that way all interference and noise are common mode, and are very much easier to remove.
(p.s. I actually only have a 3 ft ground rod at home, and I still manage to avoid RFI, but, admittedly, its not really up to spec)