According to He Song's estimation,
If he was to study these two skills without any annotations, it would take two years for him to master just one skill to the point where he could use it at will without losing any of its power.
However,
It was precisely because of the large number of annotations in the skills that He Song saved a considerable amount of time.
Therefore, he estimated that he would need only two years to fully master both skills to the point where he could use them at will without losing any power.
One year's time would be enough to master one skill to the point where it could be used at will without losing any power.
After some consideration, He Song still decided to learn the Mountain Pressing Sword Riding Skill first.
It wasn't because he didn't want to learn the Mountain Wind Riding Skill first,
It was because,
