Do CoC and Cast on Channel (Also CoC? CoCh?) stack?

First question: If I use blade flurry with Cast on channel and cast on crit, does it have the possibility of doing double triggers or are they sharing cooldowns?

To give a concrete example, say I have blade flurry, cast on channel, cast on crit, and bladefall linked together... bladefall will cast periodically during the channel, but will I get additional casts of bladefall when I crit?


Second question: How does Cast on Crit work with channel skills? If I cast blade flurry does it roll one crit for the whole channel or does it recheck per hit? per tick? And for the purpose of CoC how often can/does it trigger during the channel?

Multiple triggers for one spell disable the whole set-up. Linking Bladefall to Blurry and both CWC (Cast While Channeling) and CoC would mean that the two triggers lock each other out.

Channeled skills are considered a single cast, and I believe I recall hearing that trigger effects like CoC can only happen once per cast, unless you have a specific exception. Blurry would recheck each hit for a crit, I believe, and CoC would trigger with the first crit, but after that the CoC trigger requirement has been met and the gem doesn't check any additional trigger events after it's already triggered.

I'm probably explaining this horribly. Blegh. VIPER. You know what I'm talkin' 'bout, right?