Eric Greenwell wrote:
Is the fixed portion symmetrical but with a control surface that has a
slight undercamber on the bottom? That's what my ASH 26 elevator is
like, and I believe that is normal.

If the fixed portion is not symmetrical, is the flatter part on the top
or bottom?

I know the ASW27 has a small camber (up side down airfoil)
the 26 would most likely have it too. The Elevator under camber acts
like a servo tap, the faster you go the more up elevator you get when
flying with you hands off the stick, even if the trim spring is all
the way forward. This is a safty feature.
Udo