The current implementation misses one of the temporary buffs from Violent Retaliation, namely the one that grants +1% block chance and +8% increased global physical damage per hit blocked in the past 10 seconds.
It's not a sustainable buff, but playing with its numbers in PoB makes it easier to tell e.g. how high it needs to be stacked in order to cap block when in a reduced-block map, or how to balance damage vs. attack speed on permanent sources thereof in order to benefit the most from VR's damage increase, or what values to avoid in a phys reflect map (VR can easily kill you there if you let it accumulate).
Notably, when playing as a melee Gladiator, you will have at least 2–4 stacks at all times during combat, usually closer to 10–20. In some highly specific scenarios (e.g. some bosses and delve node encounters) it can exceed one hundred easily. My current record is 268, made with 82% max block: https://www.youtube.com/watch?v=-KMLz3iirxI
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