I'm not sure exactly what is causing this but I played w/ layer height and it didn't change the effect. It isn't a huge deal to me but I'm just curious if this is an indication of something I need to address? It has done it from day one If I recall at different temperatures. The pic is the orientation it was printed in. I did use supports for these not that that would effect this pattern. The spot is flat to the touch so it's merely cosmetic I think.
Thanks much guys,
2017-03-13 16.38.07 - Copy.jpg