I tell ya, I used to be a "plug and play" kind of builder but not so much anymore. I got to the point in FF where I was making all my own hardware from boom hinges to DT springs. Same is true with the T-6 I just finished. The adjustable leadout guide, tip box, scale(ish)landing gear and wheels...It adds to the sense of accomplishment when you fabricate as much on the model as possible. Plus you dont have to wait for the mailman quite as much!