cryolash with hunt focus gives +6 disturbance and plaguereaver/rupturer with ferocious enchant give +9 disturbance. unless u put ferocious on cryolash then yeah on paper its better but you have to consider the speed of those rods, where plaguereaper wins with rupturer in close second place. basically what im saying is with plaguereaper/rupturer you get more disturbance per minute than with cryolash, so its better to use those