Going Up?

I have spent hours and hours trying to get my initial elevator concept to work in UD ed. Its impossible! well maybe not, but I have tried all the combinations in the settings and it just wont work. I wanted to get both elevators at the same time to lock in at the meeting space in position particular; but I just cannot seem to synchronize the two. So I have come with another design, based on the previous individual elevators.
However, I would have loved to have had my previous concept to work. The idea of both depending on each other and are a little less powerful when they meet seems to have a rather good play on power as a holistic concept.
Nevertheless here are my latest: