I have a question that may sound stupid to some, but I need some advice. I am an amateur who loves shooting wildlife, specifically birds. I live in a coastal area so there are plenty of opportunites for shooting shore birds. I am using a D300s with a 70-200 f/2.8 VRll. I am considering purchasing a Nikon teleconverter but am not sure which one would be the best choice. I read somewhere that the TC 17E 1.7x worked best with the 70-200 but am not sure. I thought I'd ask for a little input. Also, the lens is awfully heavy and I sometimes about the mount being strong enough. If a t/c is added, are the mounts hearty enough for trekking through the wild. Just a thought... Thanks so much for the help!