Chris, Thank you for going into such detail. I have built L-girders before and have the book. I in fact had set 24"x48" grid type modules on top of the L-girders and they worked out for two moves. From what I see and read, you have streamlined the module construction a bit. For the coal mine modules, do you have cross members perpendicular to the front and back boards? Both module methods look like the modules can be bigger than mine were and still slide into position nicely. I like what you have done a lot.
I built a module last winter similar to what I did years ago, with the intent i could try some scenery methods and take it outside for photography. It is a bit too unwieldy for me to easily move even with scenery roughed in only. I think I will try one half the depth for outdoor photography.
Thank you again!!
