Originally posted by Hacker
I don't know about the arf....but in the kit the instructions tell you that the joiner will not fit without "sanding and fitting"....
next time order there new knife, ready to fly,engine of your choice installed,radio of your choice installed,custom color scheme,battery's charged,fueled up,engine running.....and a personal assistant to hand you the transmitter 
Ah! I remember the first words in a kit I bought when I started in this hobby. It said:-
'Trace the rib shape from the plan and copy it onto the supplied balsa sheet';
. . . and they had forgotten to put the required thickness of sheet in the box!
By the way, I tried to get somebody to write this for me, but couldn't. . . Sheesh! . . . Call this a good forum?
David C.