Board Thread:Questions and Answers/@comment-5693502-20140321164050/@comment-27973430-20161116183933

Wonsulsa should be the same as those two but Baam was able to use Wonsul and then later use regular shinsoo. I think that the only reason they (Jeonsulsas and Hwayeomsas) always use their specific type of shinsoo is because 1) it is stronger than regular shinsoo and 2) because it is a theme SIU gave them much like how Hatsu is a swordsman and you never see him using anything  but swords (I know he used a pipe once but he used it like a sword so...). It is basically just changing shinsoo into a different property so I don't see why it would be impossible to not change it or change it into something else.