Im full Focus specked, I was Vigilance which has some nifty utility to it. But Focus does alot more damage and If you notice the high aoe crits thats from SMASH. Smash in that tree becomes highly effective you just have to make sure to use STASIS and FORCE EXHAUSTION when ever there up to keep your SINGULARITY up to increase your crit damage it helps for some nasty damage aoe or solo targets.
Nice! I will have to try that! Are you using DPS gear and can you tank effectively with this build? I saw your health at one point and thought you have to in full tank gear!