<<Lastly, don't forget to shoot bursts on CH and turn your VR off when using a tripod.>>
Or indeed at very high handheld shutter speeds, say x1.5 the focal length shutter speed equivalent. E.g. A shot taken at 300mm should be able to achieve sharp images without VR at 1/450. This is an old lens rule too before the days of optical stabilization. I only know for 2 reasons. Firstly, I was using high shutter speeds (e.g. 1/1200) and getting soft or blurred shots and referred to specialist help on here. Secondly, I was referred to Thom Hogan's excellent explanation of when and when not to use optical stabilization.