I had asked: "Does it make a difference in what side do I place the head and tail of that arrow regarding the folding line?"
Anna answered, "The arrow should start and end on the part that actually has to be folded over". I now ask all of you, does everyone else agree with Anna? It makes sense to me, but I had asked a friend to revise some diagrams, it had the arrows just like Anna is describing them, but my friend suggested to turn the arrows around. That's why I decided to ask the majority here just to be sure about what's the right way. Who seconds Anna's motion? ; )
