Daryll, As far as the screws coming out, get rid of the truck and keep the UCD! You need to put a drop of thin CA in each hole and it will harden on the threaded area in the balsa. Like the threads inside a nut. Unfortunatly this is only good for a certian amount of time. Those screws will only go in and out so many times. You need canopy cement and make it permanent. Canopies and cowls are on eternal backorder! As far as those other guys on this thread, you can knock the wheels of any plane! Although the tail wheel is a new one on me. Good luck