In Path of Exile there is a choice of weapons-mode. Being an archer, you can have bow and arrows on one mode, and a shield and a sword in the other mode.
But, for a committed archer, what is the point of the second mode? If you are always using your bows and arrows, and you never switch weapon-modes, of what use is the shield and any "perks" that some with it?
I.E. does a shield protect you if it is on the secondary weapon mode, and is not being actively used? What about any "perks" that might come with the secondary sword? Do those apply?
And if they do not apply, of what use is the secondary weapon mode for a committed archer? Why equip anything there at all?