Some other tests to do:

Fly straight and level and pull into a vertical up line. See if the model pulls to belly, canopy, or flies straight up. This is another test for thrust angle. Pulling to the belly would indicate too much down thrust.

Power-Off vertical dive. Again, note if model pulls to belly, canopy, or falls straight down. This is a test for the incidence. If the model pulls to canopy, it shows a need for in increase in wing or stab incidence.

Knife Edge flight: Another test for incidence. If the model pitches to the canopy, it displays a need for an increase of wing or stab incidence.