Hi Kevin,

> Once I rotate one of those cross sections (eg to match the angle of the wing), I can no
> longer use the edit frame because it squashes the profile out of shape because the edit
> frame doesn't work on local coordinates (see attached image).

I'm not sure if I'm understanding your specific example there - are you in the Top view there and working on profiles which are vertical planar curves?

How does the edit frame end up squashing your profile in that particular case? If you're in the Top view if you either rotate or scale the shape it should still remain a planar vertically oriented curve, no matter what bounding frame it presents...

- Michael