I made 3 spads just to see how they work. They do fly well but I went back to balsa. The wings were heavy and tough as nails. The plastic drain pipe fuse was brittle and didn't stand up to our grass field and being plastic can't be repaired very easily. At first I was told to get the light weight drasin pipe to save weight. Then when I had problems with the screws ripping through it I was told to go to the heavy drain pipe which would double the weight of the fuse. Overall I think balsa and ply is tougher and much quicker to repair if needed.