No update for a while now.

Sorry been busy with a few other things, but I did spend time on my layout
just can't show anything for it.
With the Märklin Digital system you can let a train stop gently at the signal
by changing the digital current for negative dc current.
You can buy a unit for this, but a one per signal it hurts the pocket.
The circuit is quite simple so I built my own many years ago.
This worked very well, Werner saw it in operation and can attest to this.
So now I fitted this to my layout and it does not work anymore.

Instead of slowing down nicely the train accelerates.

Back to the drawing board for me.