Got a couple of last things to post before the Finished thread.
When you have a hole where it doesn't belong, or too big. Stretch a piece of sprue and glue it in, cut it off and finish smooth, easy peasy.
Then I've forgotten if I posted my method of making a rudder, mold first, then cut out the one from the kit. Although I think I used the cut out piece and added styrene to the cut edges to fit to size. I cut out the trim tab on the rudder, and both for each elevator.