Philip probably a little of both decide which side is the straitest hole and then ream out the hole thats off line if you weaken the elevator too much obviously thats not good so a little tweak of the wire is probably ok, also remember epoxy is heavy the amount is small but out on the tail adds up quick if its so off that your not comfortable opening the hole any more then fill it with scrap balsa and glue it in with Tite Bond and redrill the hole after it drys Tite Bond drills alot smoother than CA.