After spending some more time trimming, I realize its not your programs fault. I can’t keep level altitude manually in any of my planes. I had no issues with Xplane. IMO, the trimming in MSFS leaves a lot to be desired. I use the analog trim wheel on my CH Products Fighter Stick for trim and can’t get the sensitivity right.
What I would suggest and a question:
Make it so the missions advances if the ALT is 1300 to 1500 ft instead of 1400 ft. Give some room for error +/- 100 ft or so.
Also, what settings do I need to see the visual guidance? I have all my assistance turned off. What do I need to turn back on ?
Thanks