Just flew mine today.... Hinges no problem...no flutter and tight gap. Plans say drill a small hole in the center of hinge cutout to help CA wick in...works great. Go with the plans. Everything was
fine read my suggestions above about engine preference and suggestions. I also would instead of using springs on steerable tail wheel I just soldered a direct pushrod off the rudder servo pushrod straight to the tail wheel. Works better and more control on the grass.
Be sure to beef up the front firewall if running a gas engine and mount the throttle servo inside the fuse not in the engine compartment as plans say. I think you could pick-up radio interference from the ignition.
Any other questions let me know.
Flyguy.