I`ve been lurking and reading this thread.....great info here!!
2 questions, I`ve been flying the covering off my blades and really enjoying this little bird....very impressed but if you hold the main gear and try to rotate the head, theres a slight amount of play....seems to be at the little pin that hold the head onto the mainshaft...is this normal?
Also, has anyone put tail fins on? I believe it would track better in flight....if so, what material and how did you mount them? (ops thats 3 questions!!!)

I did have alot of gitters when I first flew the BCP...found out it was a loose transmitter antenna.