I just received a 105mm AI Micro Nikkor and it is much stiffer to focus than my other Nikon lenses and I am wondering if this is normal. The lens looks almost unused and I wouldn't be surprised if it has been sitting without being touched for a long time. I have been sitting in front of the tv focusing back and forth and my hands are tired and raw-the lens is still stiff. Is there anything else I can try or is it time for a CLA? I also could use some recommendations for Nikon techs; I am looking for the Don Goldberg or Sherry Krauter of Nikons. I live near Chicago, but would be happy to send things to whoever does the best work. Thanks as always.