Somehow, I’m sure someone here has posted something like this, my searches aren’t finding it.

I just bought a GP laser incidence meter, and discovered how much the thrust angle is off the mark. Luckily haven’t flown yet. I am using the wing incidence as my reference point. Looks like I will need to re-mount the motor. (I suppose everything needs to be measured and nothing taken for granted).

Anyway, the documentation states I should be using stabilizer incidence as reference point, but not sure I would measure this on a v-tail and am assuming using the wing was ok. Any comments appreciated.