The second aspect is the user of the seal. The one that has the seal on his body. If they are skilled enough with it, they can mould chakra with extreme speed. Junsui mastered the seal. He had this seal printed on his body by on of the best Kyōinjutsu users in the shinobi world. He wanted to ensure that he would get maximum efficiency from the seal. Additionally, he was able to master the use of the seal. As when the seal is applied, the user feels awkward considering that they got a sudden augmentation in acceleration of moulding of water release techniques.