Quick look: Howling Twilight needs more recharge 
You took clouded senses in Dark Servant but you didn't slot any accuracy in it. I usually go 6 slotted dampened spirits for a pre-50 build. There are some nice bonuses in that.
You say you are getting whacked by PPD. Are you talking the psy cops or the bastages that have equalizers in the groups? PPD cheat anyways. The new content in the tip missions does seem to include some boost to the foes' AI. I noticed that some Nemesis groups were particularly evil on the blue side tip missions.
You might want to tell us the particular foes and what tactics you are using. I have a level 50 Thugs/Dark. I usually go at the hardest groups in what I call "pounce mode" I don't single pull. I smack them fast and hard with fearsome stare and/or howling twilight. Park dark servant in the group, even do a go to/defensive with the bruiser right in the middle of the spawn, too. With practice you can order your minions while animations for debuffs are going off, getting the darkest night in place after the click debuffs. When the battle is the hottest, hug the fluffy.
Triumphant Defenders Forever
Psylenz FF/Psi, ArticQuark Storm/Rad, Symon BarSisyphus Bots/psn, Max VanSydow Thugs/Dk, Cyclone Symon Bots/stm, Blue Loki Ice/Cd, Widow 46526
HelinCarnate:OMG it is so terrible. I have the option to take 3 more powers but no additional slots. Boo F'ing hoo.
Hehe, yes, I like having Howling as a debuff every 60ish seconds; nothing says "stitch that" to a Rikti Leader quite like HT. Very rarely I team with her and if I do, it's never up if someone dies. 
The biggest problem was the PPD psi cops. I had an awful run yesterday of Psi PPD, Rularuu and the never-ending-wave-of-ambush-of-doom-Thystles. Oh and the waves of Rikti ambushes that targeted me so I couldn't run, regroup and try again but followed me across the map, insta-held and then killed me.
Interestingly I ran few missions with a stalker (level late 20's) and had no problems. So it could be the type of mob, yes. (One group of PPD I avoided were conning orange to me and I was set on -1 at that point. 
)
I use the numpad binds and generally have the 50/50 bodyguard/agressive. Arsonist on aggressive because he takes enough damage without taking mine too.
Tactics USED to be:
Simple group - view group, find most annoying thing (sapper/nullifier) and Fear that group or hold annoyance THEN fear, boys go forward and attack (I never place them ON the mob but back a little and I move up to them to cover any heals) /drop Tar Patch, Web Grenade.
Tricky group - HT nastiest thing, web grenade, anchor, boys just ahead of me and me move up/Tar patch, Fear, hold pretty much rinse as required.
Either way, I'd be pretty much steamrolling. Not unknown to clear a fair proportion of an Oranbega map by just constant pushing forward with fear, Tar and Web.
I barely needed to heal; fluffy took care of all of that. He is still healing/holding but I find the arsonist is even more suicidal than previously and they really aren't seeming to group as much as previously.
Now my tactics are much less steam rolly than I'm used to. Passive pets around a corner, tar patch, pull with HT, run and hide, web grenade when grouped on tar, boys go in while I fear/hold.
Fluffy is slotted for +max end/recovery. At one point she had HUGE endurance issues. She rarely bottoms out now; I'm very active with my secondary. I'm thinking now go 4 pieces of CS (2, 3,4 and 6) with two of DW (1 and 3).
I admit I fell with a MM there isn't much point summoning on x1. (Kick back to resummon each mission and individually upgrade each pet twice.)
Thank you for your critique. 
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There's a new freak boss in tips with kinetic melee powers and a nuke that I hate hate hate!
The recent introduction of tips has left my girl feeling a little underpowered.*
She solo'd her way from 35 to 50 - mainly doing Borea missions on x8 but I'm finding even -1 x4 can be a death fest on tips. It seems to be the pets going down more often than me and I'm at a loss how to fix it. I love this girl, I really do but this is driving me nuts. The mobs are different but going from +1 x8 Rikti absolutely fine to -1 x4 and getting whacked by PPD seems a big difference.
Any thoughts on the build would be appreciated. (I know with inherent fitness I will have a few more options.)
Thanks in advance.
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