I have planned my layout very carefully over the last couple of months but I am no expert on wiring, just inspiration . I was wondering if someone could take a look at my layout for me to see if there are hidden reverse loops. I haven't installed decoders in all three of my SD35's yet so I don't want to be confined to running DCC alone. Are reverse loops a problem with DCC, or are the only a problem with analog wiring. How would one go about switching back and forth from DC to DCC on the same layout?