Besides speed, Dongfang Bubai was also able to use only a needle to fend off attacks. It seems that sunflower manual's arts are truly unimaginable. We've never seen Qiao Feng, Guo Jing, Zhang Wuji, Shi Potian, Yang Guo or any greats using a needle to fend off sword attacks.
Does this means in terms of power, Sunflower Manual is the strongest in Jin Yong's world?