If the black line at the front is sitting right on top of your hairline, trim to that line....I`d leave the back
alone i.e. just `tidy` off any `rough`edges on the actual template edge itself as it is....ignore [ done`t cut]
in to the black line there. You need to be careful not to `over-do`the density or it will look wrong/unnatural,
so from what I can see, I wouldn`t go more than 65% max., but 60% might be better from what I can see in
the pics...... hopefully a few others will chip in with their opinions too.... Paul.