According to my test, once you start to channel a Flurry, this Flurry’s attack speed depends on your attack speed at the moment your starting channelling , and it won’t change anymore even if you get any attack speed aliments after that moment untill you rechannel a new Flurry.
For example, the Flurry skilltree node Relentless and Adrenaline rush 's increaseing attack speed effect won’t make your current channelling Flurry any faster which proc these two effect, unless you stop channelling it and start channelling another Flurry while those two effect still in their duration. This situation also happens with the marksman passive Arrow storm: if you want your channelled Flurry benefit from Arrow storm, you should use any attack skill once to proc Arrow storm effect first, then start channelling Flurry.
So my question is this:
1 Is other channelled skill ’ s attack speed like this?
2 Is the damage of channelled Flurry like this?