( ) Are the holes in the horns aligned with the hinge line? Differential throw?
( ) Is wing free of warps? Does it have the proprer amount of wash-out?
( ) Does the wing balance laterally?

Elevator

( ) Is there any apparent structural damage?
( ) Are hinges adequate and pinned?
( ) Is covering secure?
( ) With a firm but gentle pull, will the elevator detach itself?
( ) Are control horns secure and in good condition?
( ) Do the holes in the control horn align with the aileron hinge line?
    Otherwise, you will have differential throw.
( ) Is there a gap between the elevator and the horizonal stab?

Rudder

( ) Is there any apparent structural damage?
( ) Are hinges adequate and pinned?
( ) Is covering secure?
( ) With a firm but gentle pull, will rudder detach itself?
( ) Are control horns in the horn aligned with the hinge line? Differential throw?
( ) If tail dragger, is steering tail wheel isolated from rudder?