Since I started this thread I eventually moved the Ikeda over to a Dynavector DV505 arm that is on a Scheu turntable I have. The cartridge performed well, and had no tracking issues at all, with a balanced sound and low noise floor.
However, since I am not the original owner of the cartridge, I had no idea of the hours on it or the condition of the diamond. I figured it would be a good idea to get it serviced and have a known starting point.
There are very few places that will service this cartridge. However Expert Stylus has confirmed that they have experience with it. So a week ago I sent it off to Expert along with an Ortofon MC2000. This morning I got confirmation from the company that my package has been received, and to expect the results of the inspection in about a week.
At least from this juncture things seem to be going well. Good communication, and no issues with shipping from the US to the UK.