Do you guys have any tips on the tops of my prints being practically transparent? In Simplify3D I've tried upping the top layers from 2 to 3 and even 4 and it doesn't seem to make a difference. Even if I rotate a model and print it with a different orientation, whatever ends up on top will not be fully filled in. I've watched prints finish and it looks like it just does a few cross patterns (diagonal one way then again the other way) but not enough layers to prevent light from coming through. Any thoughts?