Training all day and only going up one level, the efficiency is indeed not high.
This is still under the premise of having "past life experience"; otherwise, the effect might even be discounted.
But no matter what, having something is better than nothing.
Apart from the level increase, skills have also improved a lot, especially weapon skills, with both one-handed and long pole categories advancing directly to master level.
Weapon skills not only enhance the damage dealt with weapons but are also prerequisites for learning certain special skills. They are always better the higher they are.
It's worth mentioning that through this sparring, Xu Yang's weapon skills also reached the master level.