I have built several arfs but only 4 kits, and the bigeest problem I have is with the hinges. What are the easiest hinges to apply (so far I have only used the SIG easy hinges) and are the hinge cutting machines I see at the hobby shop any good. I just finished a Sig 4 Star and I am not happy with the hinges. They don't seem to be in the middle of the wing, tail & aeleron edges. Does this affect the flight characteristics or does it not really matter? I am only off center a small amount but it becomes noticeable when you look down the wing.