I had a small setback when I trimmed three of the elevator stiffeners too short. I missed note 2 on the blueprints below and trimmed the distance "X" on note 1 from the next to the last hole. Note 2 said the last hole was not drilled until later. Dang! I was initially bummed when I went to order replacements but was happily surprised when the price was only $6.49 for the pack of 4. Way to go Van.