Stan (or John), (or anyone else), some time ago you posted a neat circuit for flashing 2 LEDs. I put it together and it works great (with the 555 Oscillator module). I think at that time you also mentioned that the circuit would not work with the standard Lionel crossing flasher. Having gotten into this, I understand. Since both lamp sockets are physically tied to the frame (ground) and since they can't be removed, your circuit approach isn't doable.
Does anyone have a suggestion or a work-around because an electronic flasher is much better than the Lionel contactor.
Ken