Sdrc- Thanks for the detailed explanation. Given the rather unique failure mode, it's no wonder that it took many tweeters before the problem was realized. In retrospect, the "pulled the components off center" should have been a clue that the power cords weren't formed properly to remain seated into the component. Of course, hindsight is 20/20. As for the quality of the terminations of the FIM cables, I can only guess that they changed their termination techniques after the production of the cables that you installed. All of the cables that I own are extremely well terminated, both electrically and aesthetically. Since the IEC connector shell of the FIM power cord is industry standard, it must have been the bend stress that wasn't allowing proper mating. Again, thanks for the lengthy and detailed explanation.