After about two hours, I can play Little Brown Jug at probably 3/4 tempo, hands-separate. According to Chuan Chang, that means I am thisclose to being done with it! (Well, not really, but I am trying his theories on this piece to see if they help.) Yes, I am still ignoring the suggested fingerings, and yes, it's working for me so far.
One thing I am surprised at, as I focus on getting it down HS first... I am not doing nearly as much keyboard watching as usual. More updates on this as further events warrant.