I drilled the elevator horn per instruction (clamping the counterbalance arm "in trail" with HS tip), then noticed the trailing edges of the elevators are not aligned. The left one is about 7/16 higher. I checked with Van's, they told me it's fairly common, most people just make sure the counterbalance arm is "in trail" and accept the where ever the trailing edges at. Sound's like I can just "build on". But I am still surprised to see this much misalignment. When I built my flying RV7, the elevators were perfectly aligned. I checked the HS and elevators individually, they all look straight. Instead of "build on", I drilled out the counterbalance arm, trying to work out this misalignment. But I spent the night for nothing, very difficult to reposition the cbw arm. I then rivet back the cbw arm, with bigger rivets and some additional pop rivets, back to where I started. I guess I have to live with what I have if I don't want to build another elevator. Does anyone have real life experience on flight characteristics and performance with this much elevator misalignment. I know it will be a slower airplane due to added drag, but by how much!