Mel- I never said that non-inverted bearings will deteriorate in 6 months. Harry said the design of non-inverted bearings will want to move after 6 months. The bearings according to Harry are hardened to Rockwell 60 and are so tough that they are extremely resistant to wear. You can't cut them with a saw or knife. My understanding in reading between the lines on my own research on precession is that non-inverted bearings after awhile may be noisier versus inverted bearings and may possibly increase rumble, but both bearings at this hardness level should be very long lasting.
I had the original acrylic platter with my Super Scoutmaster, and upgraded to the Super Platter, and then to the Classic platter with custom inverted oil pumping bearing. I personally prefer the sound of the Classic platter over the other 2.
My experience with VPI is that Harry is an inveterate music lover, audiophile, and gifted turntable designer. He is always pushing the envelope to further improve his designs. One of the great things about VPI is the ability to upgrade a platter, motor, bearings, tonearms, footers, etc. "if you want to" or not. No one is holding a gun to my head to do this. I choose to push the envelope with certain upgrades. in the end it's really all about enjoying
the music.