Probably a minor problem for people keeping the AF couplers. The coupler return springs did not work on 3 of the 4 trucks on the two hoppers I just received. I have attached two photos to show the problem. The legs of the return spring are straight and not held captive. As a result, one or both of the spring ends can ride over the small tabs of metal that are meant to keep them in place. When that happens the return spring no longer brings the coupler back into position. In the initial runs of the hoppers those ends were inserted into a small slot that kept them captive. I removed the couplers and bent the springs down as shown in the second picture. So far it appears that may solve the problem.
