The post on the board here is missing the images. From the email they look amazing. Especially the head. The head seems to be completely smooth with no visible lines at all. What was the Z resolution on the head? Also what type of resin was used? Was it soft like you mentioned above?

From what you said above, would softer more flexible resins have less visible lines from lack of shrinkage and visible stress from layers? These things should be documented so we can figure out the best resins and settings to get smooth surfaces.