Thanks for the point by point reply JT. I look forward to "testing" the MTH N&W 611 on my PRR Middle and Pittsburgh Division. In 1944/5 the PRR tested J 610 on Ft. Wayne - Chicago runs, but never between Harrisburg and Pittsburgh, a region better suited for the J's characteristics (allegedly due to clearance issues). On my railroad I've addressed whatever the clearance there were and on special occasions the J will come out of a hidden staging track and show what it can do on a 13 car Broadway Limited up and around Horseshoe Curve - smoke on!
Ed