I always try to find one measurement or the longest piece in a pep file, and put the scale #'s (W,h,d) on the paper in a corner. That is so I know how big they are, and maybe you just need to find that middle #. I suggest measuring the open "O" at the bottom of your helm, where you put your head in, measure two points of the "o" on each of your helms, and make sure you find the middle distance, or appropriate distance, of your helms. then in pep, measure that using the "measure two points" feature in Pepakura.
hope this this helps...
Gotta agree with GMaster here, go slow bro. Go slow.
hope this this helps...
I love having another helljumper around!
As for the helmet, I mean no offense, but your pep work isn't very clean. Take your time, be careful, and one thing that I've found makes a really good pep is to not fold every single line, only the really sharp bends. Leave the smooth curves creaseless.
Gotta agree with GMaster here, go slow bro. Go slow.