Hi ya'll,
Wing incidence> this should be a permanent setting, not to be modified.
Reason> the airfoil should be set initially at its best L/D point. ( Best
ift for drag produced) Thus most efficent.
Then horizontal tail lift is adjusted to produce desired line of flight.
These fundimentals have been violated in many designs for what ever
reasoning.
In that case first move should be to reset wing at proper L/D angle.
Then tail angle will also probably demand attention
How's zat?

Hal deBolt