I can rent from a couple of different places, so I'm anxious to try one of these out when they show in the wild. I have a 300 2.8 and love it, but it's a beast for hand holding, and I'm not sure I want to drag it all over the park all day, and then find it too long for a given situation. If I was on a real guided safari in Africa? No question. In San Diego, I can always go back if I'm not happy with my kit the first time.
