Just spent a couple of hours testing your various suggestions. Here's what I found:
1. Running a lighted caboose over the switches yielded no power drop/interruption.
2. Tried the 1-2 decrease in deceleration speed]\d, but could not find improvement. May help once the basic problem is resolved
3. Ran the Dash 8 over the switches. in reverse, not problem. In forward, big problem. engine bucked, or just hesitated, and symptoms in between. Turned the engine around, and the same thing happened going the other direction. Cleaned the switches and surrounding track with green pad. No effect. Tried WD 40 on the rollers of the engine, to address any corrosion on roller axles, but no improvement.
4. Ran SD-90 and U50C over the same switches in the both directions both ways. NO Problem.
So my conclusion is as Barry suggested, an electro/mechanical associated with the engine. NOt sure why it would primarily happen when the engine was going forward, but it does. And it's occurrence must just be happenstance vs the factory reset of the engines.
Thanks all for your thoughtful, creative suggestions. Believe this has nothing to do with DCS, but is electrical/mechanical. If you have any ideas on why this would only happen when the engine is going forward, not backward, I would appreciate them. I will do more investigation on the rollers and the wheels, but they do not appear to be a problem, although they're the most likely culprits.
Thanks all, Ron
