Hi Dan
By creating a new addon I run into a weird behavior for Lightning Flood.
The duration in total is 10 seconds, but after activating the skill, the timer shows 2 seconds and changes the value afterward to the correct value.
https://imgur.com/wG0fxAd
I tested Endless Hail (Bow) as well, but that seems to be okay.
The seconds thing is, according to the source code, the Ultimate should have a back bar row as well, but it doesn't seem to work.