Reply to "Continuing Saga of Lionel's poor new truck design"

I bought two of the Milwaukee Road ones in the unusual pumpkin-like color that MR never had. Took the couplers into the shop and shaved down the inside of the knuckle with a cut off wheel on a Dremel. Cleaned off the mold line and made the inside of the knuckle close to a 90 degree angle instead of the way they "over-closed" before. The couplers now work fine in a train, but have to be manually closed. They will not close automatically no matter how hard the two cars are banged together. The unusual thing is that, even before modification, they worked fine (manually coupled) with Atlas or MTH couplers. The issue was with other Lionel couplers.