The issue that lays with using the Crystal Halberd during masses is not only about the damage it outputs or whether the mass is a FFA or Split. Arguably yes it can do nice damage and yes it can speed up kills HOWEVER, more often then not the people who are using the halberd are using it instead of a defence lowering weapon, not in combination... the more people use dps spec weapons the less people using defence loweing and this ends up being longer kills etc.... on top of this those using dps weps are taking advantage of those using the def lowering weps and have an increased chance of snagging pet.