Raging Blow still also costs full rage when it is avoided (only supposed to cost 20%), i.e. a dodged BT will only cost 4 rage. It's a newer ability, so there's probably some bugs on oversight. There's a lot of hidden functions for each ability.
Isn't the avoidance cap against bosses 102.4? Does it mean that we will always get a full hit with 2.4% chance even if we would have enough avoidance to reduce it by at least 30%?
On your character sheet you need 102.4%.
On the boss's combat table, it will still read to the game as 100%. It is likely that the paper doll will reflect the total avoidance past 100, and the conversion from block to critical block will happen behind the scenes during actual combat.
This is ignoring per ability crit buff chances (like glyph of Slam)
The unlabeled legend on the right side is supposed to identify each line by a haste value. The band of different values for a given crit percentage represents haste values from 0 to 90%. I made some assumptions to graph this, that Flurry was up 100% (for the purposes of white swing speed,) and that there is one yellow swing per second. So IRL the left part of the graph will be a bid higher (but barely, I think, because crit is clearly the dominant term in the function.)
Notably, at low values of crit 5% crit provides a lot of haste due to increased flurry uptime.
Edit: added the last three sentences, clarified stuff.
Just a friendly reminder to anyone who hasn’t caught the announcement post that’s been globally stickied on the boards: Most of the current threads on this and other class-specific boards are going to be locked in approximately 24 hours to make room for the shiny new Cataclysm era. If you have any last-minute posts you’d like to add or discussions you’d like to wrap up, now is the time to do so.