There seems to be a lot of confusion about the "drop in" section , so maybe a pic will help those that are confused...
The top piece is what's causing the confusion...
If you study it, you'll see the bottom lane moves up to the middle lane. Then the middle lane moves up to the top lane. Then the top lane moves back to the bottom and it starts all over again.
It's a great idea, and should work without doing any additional wiring. As been mentioned though, MAKE ABSOLUTELY SURE there are no other controllers plugged in other than the one you're using. It won't matter which station you plug into, you just can't have more than one hooked up.