These guys are great. I had the same problem, looked at the solder joints and said they seem fine just like you did, finally got a magnifing glass to take a look, and said the same thing you did. Soldered them up and no problems since.

This forum rocks because of the wonderful people on it. Sometimes the political comments curdle my bone marrow, but hey, I just bite my lip and move along.

Good luck with the RCM.