+1 to this, bows and guns should have at least higher damage. As a rouge and mage, guns and bows are too inferior to dags and staff in terms of damage or frequency of proc.

Comparison of the procs of the weaps I used in the past (if there's many enemy)
- Immo Dags > Immo Bow
- Immo Staff > Immo Gun
- Arc Shivs > Dread Bow

Bows and Guns really need buff, at least a damage buff will do. :/