If I use ArksCash to buy another Skill Tree

and I'm playing Fighter sub Hunter, does that mean I could also play Hunter sub Fighter? I want to be able to play both, since I love swords and DS / TD, and being able to just guard as a hunter makes me feel badass.

Also, semi- in prep for Code Episode 2, Katanas might be a new weapon, and one would think they would be a hunter weapon - so I might wanna think about that as well.

Anyway, does anyone know about this? If not, how would I be able to do both?

You don't have to buy another skill tree at all. Just switch to Hunter as your main class and it'll make Fighter your sub.

http://thedailygrind.robdamanii.com/...ekFacePalm.gif

the only way you can use both is all-class weapons
you can only use weapons of your main + all class weapons with allowing of the usage of PAs if sub can use the PAs
buying skill trees wont help you with that