The elevator bellcrank welds were not the same on the right and left side. When I placed the elevators in their neutral position there was a difference of about 1/8 to 3/16 of an inch. To fabricate the elevator stop I had to grind the difference from one side to the other so the entire bellcrank assembly would contact the stop. I also re-painted the belcrank and welds with appliance enamel...bad idea. The paint peeled and made a mess. I'll clean this up later and reapply a better paint.