WVU

Try using the search feature for WVU. There are several posts about the program that come up. There is also a post from one of the attendings, and former residents, titled advice for MS4s. Dr. Silverstein's e-mail is in that post. He responds promptly to any questions you may have and has a resident shoot you and e-mail as well.

I don't know about specific numbers, but they make it very clear that they strongly encourage rotating if you are interested. Many of their current residents did rotations there.