The first thing I checked was the cable. Pulled it off the ball socket and made sure it was at the "0" slack point. Pulled the cable and could feel the resistance of the valve. At least it felt the exact same as when I did the inital adjustments.

What else could stick or come loose to cause it to go from shifting perfect to drastic short shifts in one shutdown to next start?

I did crawl under to make sure all of the wires and lines were tight and still connected.