After all your script did help me resuming the work. I had said i would gave up but i couldn't help thinking about it. And after your post i finally decided i must solve it at all cost so i could focus on other things :)
Viewing post in Excitebike (Completed by Geod)
glad to know my weird experiments on things helped spark some sort of solution, especially since i'm finding less weird stuff to experiment with that i know is doable as is (exerion being an odd thing to try and work with and solstice being an example of screwy tile work getting in the way of things)