Pretty sure in my case it was the connection, I found it because the connector on the fusible link was melted. Undid it, and found that the male end of the plug was pretty much crushed, and was almost not making contact. If it wasn't for that, I'd agree with you. Before I figured it out, I just knew the alternator was bad, and the rebuilder built it again under warranty. Admirable on their part, and probably my fault...