Are you serious? Just use it after charge, between Unremitting and Stagger they have to burn a cooldown if they don't want to take all 3 hits. It works fine now that way and will still work fine that way with 2.0.
Btw, parsed the new Vigilance... did 2430, I messed up the rotation some and was using the stock 69 gear you get from the vendor without any tweaks (did move it over to my armor so I had some strength augments in). For reference, my friend on his Assault Vanguard, who easily parses over 2k now, was only doing around 2.2-2.3k on bosses in hard mode Hammer Station.
I'm thinking we're going to want the 2 piece Sentinel bonus, as Master Strike still makes up significantly more of our damage than Blade Storm does (22% compared to 14%).