There exists a mod called ClassicCritAdd, made by NetherCrowCSOLYOO, which allows Predatory Instincts, Harvester's Scythe, and Shatterspleen to grant their 5% Critical Strike Chance for every stack instead of only the first. It would be very handy if there was a config option for Ceremony of Perdition and Devil's Cry that did this same thing, to keep things continuous for users of both mods like myself.