Just a quick question that I should already know the answer to...

When centering the control surfaces on an airfoil shaped surface for an elevator or rudder should the center of the trailing edge of the surface be even with the center of the trailing edge of the horizontal stab or fin?

When centering a straight, blocky control surface I know you can take a ruler and make sure the underside lines up but with the taper in an airfoil shape it doesn't make sense to do that.