I just pulled the trigger on one of these that I saw on Guitar Center's website. They had it identified as an "Artist" bass. Made in 1985. It was at the Oxnard location. Hopefully it isn't junk. It has two HB's. $450 seemed pretty reasonable for a Musician bass. Polar white looks more like Polar pale yellow now, it looks like from the photo.
Ibanez Club #1090
Markbass Club #27