OK, I can't say enough good things about Gary at
www.thevoiceofmusic.com.
Not only did he send out a replacement Pfanstiehl cartridge, he sent out a "no name" cartridge, as well.
As it turns out, the replacement Pfanstiehl cartridge did the same thing as the first one; but, the "no name" cartridge seems to work as it should.
Over the years, I've bought a lot of cartridges, needles, and idler wheels from Gary and will continue to do so, as well as recommend him to others. Also, his prices are the most reasonable of any of the vendors that I've seen.
Tomorrow, I'll send the two Pfanstiehl duds back to him.