I Forgot to say :
To get rid of a warped wing , you can use an iron.
Start with a lower setting and gradually increase the heat untill the iron
is hot enough to get rid of wrinkles.

Next we grap the tip if the wing you want to twist and apply some force
opposit to the warp...
till you see wrinkles appear on the top and bottom of the wing.
use the iron to get rid if the wrinkles on Top And Bottom.

If you go Too far; just do the reverse by applying force to twist the wing the opposit of the warp,
and re-apply more heat till you get it right.

DO NOT let the tips go UP at a higher angle of attack than the root,(near the fuce), this is called
wash-in and the plane will fly like guarbage and tip stall at will. This is Very Bad !!

When viewing the set-up plane from the other side of the room; you should see a tad
more of the underside of the wing at the tip than you do near the fuce.

Another thing you can do is purchace a wing insidence guage to do this then you
know Exactly what you got. I bin flying gliders so long i can tell by looking.

Bille