I'm glad you're still on it. This is getting more and more interesting with every new idea! Maybe the script should not only check for the highest and lowest vertex, but also for others in between and process them otherwise, in "slope mode", so to say. I got no idea on how to process them exactly, though, but I'll start experimenting with this when I get some free time.

Edit: Oh well, as for the update, just have a look at my signature lol