It only took 10 years since starting construction (!), had some of the guys over for a shakedown/informal op session. My HO layout, a double-deck mix of RP and NCE, functioned perfectly (a decade's worth of fine-tuning and pre-op track cleaning will do that...). None of my experienced operators had ever used RP. They were suitably impressed, particularly with the MU functionality. What a fantastic feeling watching the railroad come to life in the operations framework I had long envisioned!
