I use it after surprise strike.
If I want maximum burst i start with surprise strike instead of CA and I do stealth-SS even in normal rotation if I want to stack two CA dots. I dont cut flashing blades animation since HD, when the animation was shortened. I tried to cut the CdG animation and it didnt seem so beneficial to me, but I didnt try cutting double-edged yet. Thing is suprise strike from stealth - either really from stealth or after FA isnt without addle worth it and addle makes it a really nice and worthy skill, double edged-strike is worth it even on its own.
Naius - Burglar of Withywindle
[url]https://www.youtube.com/watch?v=J-uYwngjXZI[/url]