Without re-reading the thread, I suspect that this may be related to the 22k resistor I was recommending. ToyKeeper did some tests which indicate that this resistor is a very bad idea, 19.1k is still the way to go.
Take a look at the posts I mention in my own post #642 here for more information. If this doesn’t seem like what you are experiencing, doesn’t apply, or I just need to re-read this thread let me know.