The user must be very careful with this technique though. For one, the user must take great care with the chakra they are siphoning. If the chakra belongs to a jinchuriki or is malicious in nature, it could harm the user as a result. Also, the vines can steadily absorb chakra but can only siphon so much. If their capacity is reached, the vines will either simply cease their function or die altogether from overload. Additional seeds must be used to siphon greater amounts of chakra.