Since my first post Ethan has continued to use the potty! Some days he actually uses the restroom and sometimes not. We usually only have any actual "action" once a day but it has happened multiple times a day, a few times. Of course he's gone days where he sits there but doesn't do anything also. He does LOVE sitting on the potty so that's a victory right there:).
I need to suck it up and let him run around naked (on the bottom half at least) for a day so he'll really get used to recognizing the urges and desiring more distinctly to eliminate in the toilet. We shall see if I buck up the courage. We've tried periods of the naked training, with Ethan barricaded in half of the house without expensive rugs:), and it was fruitful.
This will definitely be a process but hopefully he's learning.