> Quote - Also four polys in the back interior have strained UVs;  need to fix that, too.

Hi. I'm curious about what you meant by "strained UVs".  

On occasion I get something like a shadow (as seen in accompanying image) along an edge. 

The edge seems to render as though there is a slight angle to it, although there is none.

I have yet to find out what causes it for me, as sometime reloading the model makes it go away. 

I'm curious if there is a term for this (such as "strained UVs"). I have asked in many different places about this phenomenon, but people either don't know or don't understand what I'm talking about.

If there is a term for this I might be able track down the cause easier using the web.

Thanks!