Seems really stubborn at first, but once you play around with it and explore its possibilities, it's much more forgiving. Here's a succesful all-gold demo.
Directly before making this map, I played Baraba's "cafe bright (whorish)", found here: http://numa.notdot.net/map/68308
Any similarities are purely because I worship him.
turtles
when you said you want multiple ways to get to the exit switch