I can't help it, I get bored at such long routes with nothing special to do on the way. I will therefore not rate it.
On my first try I was 2 off, and there was no way I was going to repeat it to cut the 2. Maybe a smaller scale?
I don't get exactly where the 180 comes from, or if there's more O_o. Kinda interesting to me.
edit: It'll be interesting to wake up and see what the others find here lol.