I have installed my aleron bellcranks in both of my wings of my RV7a and noticed that one is very free takes no effort to rotate and the other is not as free. I would characterize it as being "tight" it does not bind and I have full movement with aprox. 1/32 of bushing showing. No burrs on the bushing or bell crank. It seems to get tighter when I torque the nut. Any thoughts on what to check? Something that just came to mind while typing is I should check the powdercoating but again it isn't binding. Thanks for any help