On the DDD guide for Zero’s skills it states:
"Stack decay is based on fire rate. Fast fire rates cause quick decay and low fire rates cause long decay time.
Excellent skill overall,** high damage boost for any gun used outside of the following exception: **
(Jakobs fire rate, does not stack when using Jakobs)"
I am currently specced into the Cunning tree, and just started the TVHM playthrough. Through some luck with the RNG, I picked up a Hammerbuster last playthrough, and am currently specced into Rising Shot. Although the stacks decay pretty quickly, it does appear that it is stacking, and that I am getting the damage bonus. Especially when used in conjunction with Two-Fang, I am hitting 5 stacks with over half my mag to go.
So my question for the forum is this:
Are the stacks actually doing anything with the Hammerbuster? It looked like it when I was testing on the dummy, but it is kind of hard to keep track of stacks and damage output when testing it for me. Aside from the rapid decay, are there any other downsides to speccing into Rising Shot with Jakobs weaponry?