That'd be a great idea. You have my vote. Perhaps it could be done more often than once a year - bi-annually?
http://www.bachmann-trains.com/asp/newshome#102 Is the news item on the 44t, looks like they are putting a whole new drive in with one motor instead of 2. All my (5) 2 motored 44 & 70t models had run fine, but I know people, who have had real trouble getting them to run. I have a feeling that when they first came out the 2 motors were not wired together. From the pic there the headlight & handrails look to be much nicer, and I would be surprised if they only did those 3 roadnames they list there.
I only had one Spectrum diesel until yesterday when two more finally showed up on my porch from UPS. These are GE DASH 8-40CWs i ordered on-line for $26. The first one was a great runner and quiet. Of the two i got yesterday one is as good as the first one but the other one has that annoying noise several folks have mentioned. I'm going to follow their break-in instructions, then if it still noisy i'll see how good that lifetime warrantry is. A bonus on my units is that they are undecorated, so they supply two extra undecorated cabs-great kitbashing material with 6 extra to play with! Curt