I am building a PT60 and with the exception of the Hobbico sturdy Birdy 2 this is my first real kit. My question is about the washout on the wing. I put the wing onthe washout jig as per the instructions and followed everything just as it was written, but when I took off the weights the wing went right back to the way it was before I sheeted it on the jig. Is this normal or is there a problem with my build? I was under the impression that the sheeting when glued on would hold the washout but it didnt. Any help??

Thanks in advance
James