Elevator stiffeners

Over the last three days I completed a majority of the elevator stiffeners. Unlike the rudder, elevator stiffeners aren’t all pre-marked to their finished length; some must be fabricated from longer lengths of stiffener angle. Also during this process, I found another discrepancy in Vans’ plans. Rudder plans don’t call for removal of all reference holes from each stiffener, but the elevator plans do. Which one is correct? I asked Van’s this question during rudder construction and got the following response… “You don’t need to remove all of the holes, but if you have it won’t significantly affect the strength of the stiffeners.” So why require it on the elevators?