Thanks for the input, especially Marty saying it's a dud. With Marty's experience, if he says its a dud, it must be.
As for the MTH,(sorry, typo above, now corrected to read "coast") I've pretty well documented here the fact that they don't coast to a stop in conventional like every other MTH engine. They just lock up and skid when using the direction button or even the throttle if not overly careful. I've lost several traction tires due to this issue. I've discussed with Andy Edelman. In short, it is a software issue and with the low number of complaints and few conventional operators, a fix is unlikely BUT MTH is aware of the issue. I've had two locos with this issue and sold both. Could I live with it, yes probably but something in me just can't be happy with an engine that has this issue and I don't really want to keep it.
Hunting down a low mileage PS2 or even PS1 version may be the best option. Williams is another option and I have the J but prefer the MTH version - looks better in my view.