By "cupping" I assume you all mean that the middle of the tire is turning in, forming a concave pattern? If not, please describe what is happening to your tires.
Anyway, I checked mine closely today, and the tire looks fine. It is the 407F, but so far so good. I have 4,000 miles on my '09 FLHRC... I will inquire when I bring it in for my 5,000 mile service.
Thanks
Drew