It is an excellent lens, but, with advancing age, my personal steadiness is declining. The lens is long and heavy, and I find at 300 mm, with my elbows in and cradling the lens, it is getting more difficult to get sharp photos. I do like the 450 mm angle of view for aircraft, wildlife, birding, and birds in flight. A tripod, even with a fluid head doesn't provide the flexibility I need. I am wondering if I should buy the lighter Nikon 55-200 mm VR lens with its lesser construction, Or, if I can find a good copy of my old 70-210mm push-pull zoom, which was shorter, but not a lot lighter, and I could strangle the len's barrel so the zoom wouldn't move, and do without the extra magnification? What say, Nikon Gurus? Any advice will be appreciated!