If I remember correctly when I built my Me109 in 93 the instructions had me heat the wing after it was monokoted and twist in the washout. This seemed to work fine. Mine would snap to the right if it got slow, but you had to be pretty slow.
This snap did eventually kill my 109. But it was my dumb thumbs, not the plane. I was making a very slow pass on the edge of the stall when a club member's plane flew by mine at close proximity. I reacted with a bunch of elevator and snapped it right in.
I would definitely build another, just have to be a little less jumpy next time...