Forget about that. You're chasing your tail, regarding capsense and grounding.
Thanks for sticking with me! Can you be more specific?
As I mentioned, I've been able to get desired results with three out of four power sources I've tried, so I'm trying to determine how I can pick a suitable source without having to buy a bunch and hope they work. I'm wondering if there is some particular design, model, brand, etc. to look for.