What are your thoughts on using shake reduction while panning? I'm going to the vintage auto races in San Diego to dust off my gear and practice some action shooting. I've heard people say that it should be turned off and the manual mentions turning it off while shooting moving subjects with a slower shutter speed. However, the manual says to then use a tripod and I won't be able to use a tripod at the event, and the shutter speeds won't be reduced below 1/250 and the max focal length that I'll be using is 200 from the DA50-200 lens.
Anyhow, I think having SR on will actually benefit me, but am wondering why some recommend to turn it off while panning?