Just to close out this thread, I believe I have fixed the issue I was having. When I looked over the wiring inside my box, I noted that I did not connect the drain wire to ground. Rookie mistake. I cut a new piece of cable and hooked up my probe wiring as it should be. With that, the amount of noise filter went from 5000 down to 3000. So, the fix wasn't complete. I added an EMI line filter, but that did nothing at all. I considered a line reactor, but wanted to explore other things before dropping the bucks. Also, I don't have a lot of spare room inside the box, so installing a reactor would probably require major rework, or even mounting an auxiliary box. So, I kept looking for solutions.
I have a 5v power supply inside my box to power my ESS. It's the type that plugs into an normal duplex receptacle. I had my drain wire touching the PS output wire very close the body of the PS. I also had an AC power cord running a computer fan (I went with AC fans) laying to top of the wire grounding my case. For the former, I repositioned the drain wire so it was well separated from any other wiring, especially AC wiring. For the latter, which probably wasn't doing anything, I rerouted the AC wiring so it was physically separated from any grounds and DC wires.
Long story short, I am now able to use the touch menu with 0.0 noise suppression under the ESS pins tab.
Thanks all for your help.
Gary