Even a slight misalignment of the vertical stalk position approximately at its center need be used a pressure equivalent of tens of grams per centimeter, close to the ground adequately more, and immediately after remission of the force promptly turns back.
Kahit isang bahagyang misalignment ng vertical na posisyon ng unti-unting kumalat sa gitna nito Tinatayang AY USED kailangan ng presyon katumbas ng sampu-sampung gramo bawat sentimetro, malapit sa lupa mas sapat, at Kaagad pagkatapos pagpapatawad ng lakas kaagad lumiliko pabalik.