Help tuning 3D airplane as tailsitter q-plane

Hi, I’m looking for help with an initial tune for a single-motor airplane. I know this functionality has been available for 3.5 years, e.g. from this video by @tridge:

I’m looking for suggestions on improving the initial (manual) tune enough so I could go to QAUTOTUNE. I have read and the rest of the documentation several times, and I’m afraid I’m still lost when it comes to tuning for hover.