Who is better, Yu Shennan Gun or Zhang Jiawen?

Compared with Zhang Jiawen, Yushen's men's guns are better than Zhang Jiawen's, while Zhang Jiawen's men's guns are perfect. Zhang Jiawen has a high proficiency in the operation of men's guns, and has led his teammates into a desperate situation for many times. However, the proficiency of Yushen Nanpao is low, and the phenomenon that E does not pass the wall often appears. Therefore, Yu Shennan is more proficient in Zhang Jiawen than Zhang Jiawen.