To make any sense of what is to come can I ask that you note the height of the sky backdrop above the vents on top of the large brick building on the right hand end of the layout. The height of the backdrop above rail height on QW was set about 15 years ago when I built the layout. All that’s changed in that time is that about 3 years ago I applied a new photo backdrop to the pre-existing board. This was trimmed to the height of the backdrop that had originally been painted by hand by yours truly. However as ususal with my new train room that sloping ceiling was causing me problems and I needed to lower the backdrop so the layout could be pushed closer to the edge of the room so I didn’t have to make the layout any lower.