Yes, I know I should know this but the more I try to figure it out, the more confused I get. Low wing airplane flying upright. Elevator has a bit of nose-down trim. That is, the rear of the elevator is deflected down about a degree from being in line with the stab. Do I shim the trailing edge of the wing up (towards the fuselage center line) or down. Along with the correct answer, I would appreciate the reasoning!