Hi, I saw this mod and thought I would try it out. Ive watched your vid but I cannot get it to put the trains out at all. Maybe its to do with what side of the track things are and the exact placement of the wiring?

Without seeing what you are attempting to do exactly....
The signal you wire up is checking the next section is clear. So there needs to be sufficient space in front of the signal to build the train.

In additon, trains can only be built on straight track. If the track isn't long enough nothing will happen.

Hope some of that helps.

Cheers