dankell77 Because of the variance of attacks, and the inability to utilize a parser its too difficult to determine the effect if +0, to +5 arrow damage effects things and the real world effect of it with calculations put in.
Our abilities utilize weapon ratio damage, meaning that arrows likely add to that. But again, I cannot prove that.
Until the devs open up more on how some of their formula's work, and if some statements are true. Its really hard to answer anything right now.
Sorry I cant be more helpful on this.