The more columns connect the base to the ground, the more stable it is against interference. Similar to the landing stage, he is extremely stable. However, stability always comes at the expense of flexibility.
Thus, the base sitting on a bench or chair is affected by shear forces only from the hip upwards. Foot ankles, knees and hip, however, have no effect on the balance. The base can only balance with the joints of the upper body.
Kneeling, the base can also use the hip to balance, but should always keep the line of force over his thighs, otherwise he will tip over.
Prefer to stop early!