OK, so I have Accucraft narrow gauge rolling stock. On my ground level garden railway, these cars give me the most trouble. Uncoupling and derailing frequently. They are stock, with stock wheels and the couplers are original. On the other hand, all my Aristo, and LGB cars are converted with sierra Valley wheels and KayDee couplers. Those run without a problem. Sounds like an easy, but expensive fix would be to get the kaydee couplers and sierra valley wheels. But before I do that, I was wondering if anyone else ran into this, and what you did to correct it. The factory couplers and wheels do look nice on the Accucraft cars, if I could fix it and keep those I would...