Someone was kind enough to share their EEPROM dumps with me.  The basic structure for the PLL data is the same; 4 sets of 3 values.  The values for "0x86" are still always 0xd101.  The other values, though, continue to appear random.

So, at least the results are consistent.  I just wish I knew why the values appear random.  That's pretty strange for what should be PLL parameters.  Either I'm totally off-mark and this isn't PLL configuration data, the data is encrypted, or I'm missing something...