Oh wow, that's quite different than what I saw on my machine. It didn't make a difference at all. May I ask your specs?
I shoot in 60p since I do quite a bit of slow motion and switching between 24p/60p on the camera was going to be a chore. I was planning on having CS6 do the conforming by just dorpping it on the timeline and at times, using Frame Blending to aid the process.