Very, very cool Russo!! I now see where your affinity for green locomotives came from. The 610 is the most impressive engine that I've ever seen under steam. I chased her from Cincinnati to Danville and remember watching those low drivers and massive side rods churning away as I paced her. While a great engine, she could only make around 50 mph on the mainline - that is without knocking the track out of whack. Not exactly a speedster! But she could haul 20+ car excursion trains without breaking a sweat.