I have a 9-point AF system in my T1i with the center point having added sensitivity with f2.8 lenses or better (eg. my 17-55). Wanting to get the best capture rate, I've been using the center AF point almost exclusively... using the old trick of focusing and then reframing to complete the shot. I shoot mostly people and places... not a lot of sports. The one time I've used it for sports, I still kept it on center AF point, but switched to AI servo mode. This worked fine. Am I wasting the capabilities of my camera's 9 AF points and it's ability to auto-select or am I wise to exclusively rely on my center point only? Should I just trust the camera more and use auto AF selection? I certainly don't see the point of manually selecting the AF point for each shot... it's a LOT easier to just keep it set on center AF point and reframe the shot than to fiddle around with AF point selection... do other people change the AF point routinely? In my old Elan IIe 35mm camera, I had 3 focus selection points (left, right, center) and the camera could detect which one my eye was looking at and select that one for focus... This was back in 1996. Why that technology never made it to DSLR's is a mystery to me. Maybe I'm becoming a ludite but that seemed like a superior system to the 9AF points I have now and the buttons and knobs I need to adjust to pick one. Hence I'm stuck in the 80's using a single AF point and reframing. I'm drawn to the wicked fancy AF system in the 7D, but can't imagine how I would use it. Certainly setting it manually to center AF point almost exclusively and reframing is an absolute waste of this camera's focus potential. For those of you who have a 7D or something equally as sophisticated... how do you routinely use your focus points? What about back button focus? That's an option... but I don't know why I'd want to do that. Some best practices in using the focus systems in these camera's would be much appreciated. I'd like to get the most out of my camera while still getting the best rate of keeper shots and at the same time, start to understand how a more sophisticated focus system like the one on the 7D (my likely migration path) would benefit me.