Bend/ FFD 4x4 without distort?

Gazu

Hey Guys,
is there a way to bend a plane without to distort the vertical edges?
I have 50 vertical lines on this plane and after bending they should be in the same distance to each other.
But it looks like that some polys are higher then the other ones after bending.
How to handle that?

Here the Plane without distortion:


After FFD 4x4:


So i just want to have even quads with same height.

Thanks,
Gazu

Gazu

I think i have it...bend doesnt distort. FFD does.