Army's is worth ~16 pps or somewhere around there at max stacks. It is definitely not "barely does anything". At early ilvl crit, it is not really all that far behind MB.
Is failing to use procs past the fourth a problem, or a feature? Personally, I appreciate that each song interacts with crit in a slightly different way. There's nothing wrong with that at all. Why should every song be +damage for every proc? Remember when we only got paid off for crits on a coinflip? That was never seen as a huge deal.
Still, like I said, it could use a little more happiness to it. And, it's not actually bad if it does become better than MB, in fact if it's better than MB at base crit, and worst with crit buffs active, that'd be kinda neat in my book.
I just do not want Bloodletter v3, and I don't want anything similar where you're forcing it to convert every proc into damage like both the other songs do. My strong preference is for there to be some payoff for hitting max stacks instead. Leverage AP's uniqueness instead of making it more like the other two songs.
