At one point, perhaps when it was new, the Neos on my Mu P8 worked flawlessly...I just don't remember when that was. I've never been able to find a mech that can get it to shift like it did out of the box. I've been wanting to switch to a Shimano Nexus 7 or 8 speed internal hub for years now, but just haven't wanted to spend the $300-$400. I've tried to ignore the noise and clunky shifting, but it's getting to the point that I want to do something.