Morning Star wrote:
I turn off the image stabilization altogether when using a tripod.
When using a monopod though, I used to turn it off altogether. If the camera has a feature where you can choose what kind of image stabilization to use, you could select the lateral (sideways) stabilization. From experience, I know that is how the camera moves when I use a monopod.
If your camera doesn't offer this kind of selection, I would turn IS off even when using a monopod.