Question about Manfrotto 055XPRO3 Tripod with 3 segments

When the centre column is horizontal and extended, it will hardly be enough, then it is necessary to fix the tripod legs or to load them with weights, and the wobbling begins. If the legs are fully extended, the footprint increases, of course, so it is better to extend the centre column only halfway horizontally. It is also ideal that the tripod feet do not slip. You can also reduce the pressure by retracting one leg a little. The tripod is solid, I have never loaded 9 kg with the centre column tilted, only about 5kg. But whether this info helps....