Thanks, Dave. This pretty much answers all of my unasked questions.
You guys are going further on this than I expected with the added details. It easily fits my "cut or two" above the F/C Berkshire statement. Going "C&O" on the front end is a surprise. I've also noticed some improvements on the boiler casting vs. the F/C boiler. This looks like it's "up there" with the Y3 from a couple of years ago.
Not a show-stopper, but no slat pilot for the NKP version?