I like to think I'm good at this game yet even I could use much help with my builds.
Res signets are a nono in general PvE, you will only kill a boss every 5-10 minutes, so a hard res is preferred unless you get more morales than that, I like to bring 3-4, some people swear on two, up to you.
Fall back is always good, so you wouldn't need sprint on your bar also.
I never liked WotA, it is decent but crit agility gives you the IAS, the extra crit isn't needed, I run flashing blades for the free blocks.
Also don't listen to braxton, moebius is a thing of the past. A sin's elite is generally optional, WotA for more crits, blades for more blocks, even fox's promise can be decent in certain areas, but NEVER moebius, your chain takes 3 seconds to recharge, and less than 1.5 to execute, and you will be pumping out 100+ per hit in HM, you'll never have a chance to use moebius.
You are a melee, so strength of honor should be a staple on your heroes.
Believe it or not, your heroes can pack the hex removal, as well as your rit.
What I did: fixed your bar, rits bar, eles bar, while replacing the interrupts on the eles with a mesmer with fall back.
I understand this eliminates They're On Fire!, but it is up to you what mitigates more damage, an AoE KD, or ToF. You have three eles so deep freeze is a good baller. You must also take into consideration you have 3 AoE KDs, earthbind is a very viable choice you can fit in, but this is all area/preference dependent.
Ele secondaries are optional, want more removal run /mo, more healing /rt, more rupts /me, more damage straight up ele
IMO the eles themselves are your optional slots, replace by more rits/necros/mesmers