When assigning skill points (SP) to weapons, I can put points in Damage and Survivability (slightly different between weapon types). In order to fulfill the SP requirement for being able to wield a weapon, points in either skill are sufficient.
How does this work exactly? If I would spend points on both sub-skills would I get both the damage and evasion boost? Or does only the higher one get used? Is it wise to fill them up both if you have the points (as a mainly tank role)?