Thank you, Dave, not only for answering all the questions but also for the work that went into this model. The only question I have left is whether the Legacy electronics will respond to straight conventional DC as do the Y-3/SD70ACe/ES44AC? I run all those locomotives on Legacy, but I also run American Models locomotives on straight DC. When that happens, I have to be sure that the Challenger, U33C, and Mikado are on dead tracks. There is no concern for the newer Legacy locomotives, and it would be wonderful if the Berkshires were also compatible with DC just in case I'm less careful.