Is the squeak the AF of this lens an indication that the AF motor will die soon in these lenses? Certainly was the case for the 300/4 AFS I had, but I seem to have read somewhere that the 17-35 seems not as prone to AF motor issues. The follow up question would be: Will a CLA extend the life of the AF motor? This lens was CLA'd by a Nikon authorized service shop a few years ago, it performs very well, zoom is silky. I can live with the noise that goes away after some use. The other option (of course) is to just use the lens until the AF dies, I guess guess adding an AF motor to the cost of a CLA is not that huge.