Has MTH gone beserk, or is everyone else confused? I have heard from those who should know:
1. The steam kits have 5-volt connectors.
2, The steam kits have 3-volt connectors
3. The steam kits support incandescent
4. The diesel kits are LED.
What sense does it make to have this difference? If you're upgrading, you're upgrading. The PS2 diesel and steam upgrade kits had the same board but with different harnesses and added external components. I believe the factory and upgrade boards were the same also (trolleys excluded).
5. Why not offer the 2 unit factory steam set as an upgrade? If I'm upgrading, I want the full features.
Ralph, if you're buying more than one kit, it pays to join MTHRRC, which also gives a freight car.