HOLY CRAP!
I was tinkering with it a bit more. Got my stack dialed in. I also swapped out the alloy wheels with a set of Bontrager/HED carbon Aeolus 5.0 wheels and TPU tubes. A couple minor adjustments to the reach/bar height and seat angle.
Just damn!
Exact same route as above. 19.8mph average. That is *by far* my fastest average EVER. And this route isn't exactly flat. Total of 660ft of elevation gain throughout. It's a loop though, so I also have 660 feet of decline. But still, at least for me,that's flying.