Ikeda 9 Cartridge Squeaking

This is an odd issue I have never been able to figure out the last few months. I have an Ikeda 9 Kawami cartridge on a Well Tempered Reference table, with the longer WTR arm. There are a few albums by Mark Isham on Windham Hill label that this cartridge has a high pitched squeak or rubbing sound in the groove. I can hear it and it drives me nuts! Yet on other albums such as George Winston on the same label there is none of this nonsense. 

Overhang is set by an arc protractor with spindle to pivot being 233 degrees. I have not found a factory listed number for this arm, but an owner of a Wally Tractor had one done for his table and reported the 233 mm number. I used an original Feikert and measured 230 mm from the first setting that the previous owner had it at when I obtained this table.  I cannot find a factory protractor for this table, and all the info from Stanalog or Transparent seems to be missing. I am tempted to pull the cartridge off this arm and put it on my Audiomods Series Six with a heavy cartridge plate and see what happens there. But I would prefer to keep the cartridge on this table, but for the life of me I am not sure what the issue is. 

There is nothing on the net regarding this phenomenon that I have found. Anyone experience this, or hear about it? Since the cartridge is similar to a London Decca design, perhaps an owner of those cartridges may have heard something?