At last, i have created my final mask. I made a number of functional and cosmetic changes to the SPECT-R design, mainly trimming the edges to give it a slimmer appearance, and more importantly adding the more efficient hole perforations for better breathing and speaking.

All in all, the only thing beyond my control was the wrinkling of the acetate. Putting a flat sheet on a very angled piece of plaster and heating it with a single gun makes this inevitable. I would hope that if this mask ever went to production and use that it would be made using machines specially fitted for this task. The mask is almost unnoticeable as it is, but if it was completely smooth it would hopefully be invisible, accomplishing the main goal i was after.