There ya go !!! Exactly !!! Thanks Rufkintoy ! This is what too much cold medicine does for someone .. I knew there was a better way 
Alternatively, one could also use a simple piece of white paper to make a template. Place the paper on the back of your ear cap, with a black permanent marker, mark where you want the holes on the paper in relation to the shape of the earpiece, let the marker "Bleed" through a little onto the back of the earpiece, you now have marks on the back of the earpiece. Then put the paper with the marks, onto the appropriate part of the helmet and go over the same marks again and let it "Bleed" through again .. whalla .. corresponding placement markers 
TK-Fett .. no the ears aren't designed to sit "perfectly" flush. Once you're studded and mounted .... (No comments from the gallery please
) they will pull in flush. If you are gluing, use "C" clamps or something equivalent to hold in place until the glue is set.
FP