When I am using the RS2 in underslung mode, it seems much less stable and often jitters when it's following my pan, especially on the roll axis? Anyone who has experienced this? It's much more stable in upright mode. I wonder if this is because the axes are working in a very different way when underslung?

When I am using the RS2 in underslung mode, it seems much less stable and often jitters when it's following my pan, especially on the roll axis? Anyone who has experienced this? It's much more stable in upright mode. I wonder if this is because the axes are working in a very different way when underslung?