Well my nuvinci hub problems never went away. Cables and interfaces all checked out, so I thought it had to be broken in. After 600 miles, twist shifter was still tight and it wouldn't shift while pedaling. I have another bike with this hub and it works fine. Four bike shops couldn't figure it out. I returned it to the dealer, and ordered a riese and muller super delight Gx Rohloff HS. I am done experimenting, and just going to get the best.