Hi Guys Please could anyone tell me if something like this exists: 1. Train goes into siding, 2. Once passing an IR trigger 3a. Slows to a stop and 3b. reverses out the siding... I have some of these "Reflective Optical Sensors" - http://store.iteadstudio.com/index.php?main_page=product_info&products_id=244 I would like to use to trigger the reverse. Anyone done something like this? kind regards aubrey