Some background. I purchased a used Atlas SD-38 at York in October of 2018. The engine is equipped with TMCC, sounds and electro-couplers. But no cruse control. There in lies the problem. When negotiating the 0-36 turnouts on my layout the engine stalls at low speed. I can get the engine to go through the turnouts only by raising the speed to a unacceptable level. Plus engine does slow some going through the curves on my layout no matter the diameter.
So my dilemma is. Should I upgrade the engine with a ERR board to get the low speed control and constant speed control? And can I use the sound board that is already in the engine instead of purchasing a new one? Or should I just sell this engine off and by a new one? I would probably have the same amount of money invested in the engine either way. Purchase price plus upgrades vs the cost of a new MTH or Lionel engine.
Any ideas or suggestions would be appreciated.