Does anyone know how to tell if Deardorff 8x10 front swing plates are bent?

I have one to evaluate, and the front standard is much more rigid with the swing locks positioned to the rear of the arcs, but the plates don't visibly appear to be bent. So I'm wondering if there is a slight bend or if I'm just seeing flex of the plate.

The plates are flat within about 0.015 with a straight edge, and are a little low in the center where the lock knob usually is.