I have a LongEz that is in for inspection. A&P says canard/elevator hinge points are supposed to be threaded with a screw that goes in to the the threaded hinge,and then a jam nut. My hinges are not threaded, has the screw going through the hinge on elevator washers, then hinge on canard, washer, then jam nut. I notice the hinges for sale by cozygirrl have a bushing and are not threaded. What is right, what is wrong install? I have done a quick check of the CP's and CSA's but have not found anything yet. Your comments greatly appreciated.