Yes, I have 2 earth rods. One for AC grounding from the Puritan and one for signal grounds via the Russ unit.
So far the biggest gains for me have been the 2 ADD-PWR Wizards I use. The music is so addicting I could care less about noise. But I like to tinker so I'll carry on. I'm sure I'll get time to get those boxes going this weekend.
I also owe Jeff Smith a call so we can kibitz about grounding.