Bleed Thru of Surfaces depending upon view angle

Here is a polysrf I created. Depending upon the angle viewed, the underside starts to bleed through.
The surfaces were not created such they they would poke thru but I did mergeallfaces anyway.
Problem Seethru.zip (491.9 KB)

I think is just visualization. since the edge thckness is set in pixels. if the surface is too close to some edges. you will see them at some point.