Bachmann 2-6-6-2 DCC

[Pacific Northern]

A follow up to this posting would be nice.

I would like to know if the problem was isolated as to a defect in the decoder or is it a problem with the gears in this engine.

Hopefully, the problem is not representative of the Spectrum Mallet, I would like to upgrade a couple of these to DCC on day.

[Yankeeflyer]

My 2-6-6-2 should be at Bachman by Monday 11/2.  I hope Tom calls me soon after that .  I'll report back when I get the loco back and try it out.
I may not be seeing the details of the way these models work, but I don't see how the decoder can keep a constant speed when going down grade the weight pushes the engine, decoder backs off,train stops, decoder applies power, train pushes, etc. Movement is in one to one and a half inches at a time. I'll wait until I can check out a new engine for final judgment. 
Lee