Dark/Dark build

This is my Dark/Dark build till lvl23, not having played defender before im am unsure where to go after here with the dark powers although i played this build in beta halfway and it kicked [censored]
A few questions.
Is Tenebrous Tenticles worth sloting for damage? as i intend to be using the aoes as much as possible.
Does stealth stack with shadow fall and make you invisible to mobs?
Whats a good sloting for dark servant?

cheers

Exported from version 1.5B of CoH Planner
http://joechott.com/coh

Archetype: Corruptor
Primary Powers - Ranged : Dark Blast
Secondary Powers - Support : Dark Miasma

01 : Twilight Grasp acc(01) acc(5) hel(5) hel(11) hel(11)
01 : Dark Blast acc(01) acc(3)
02 : Gloom acc(02) acc(3) dam(7) dam(7) dam(9)
04 : Darkest Night endred(04) endred(19) endred(21)
06 : Tar Patch recred(06) recred(17) recred(21)
08 : Tenebrous Tentacles acc(08) acc(9)
10 : Combat Jumping endred(10)
12 : Night Fall acc(12) acc(13) dam(13) dam(15) dam(15) endred(17)
14 : Super Jump endred(14)
16 : Shadow Fall endred(16) endred(19)
18 : Swift runspd(18)
20 : Hurdle jmp(20)
22 : Stamina endrec(22) endrec(23) endrec(23)

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i'm guessin all the powers are the same as a drk/drk defender? (altho i can see u took tentacles at 8..not avail to 16 on defs).

if the powers r the same then some things u might want to consider (well things that i find useful anyway).

1: moonbeam. its a snipe available at lvl4 that does about the same dmg as 1 gloom + 1 dark blast. with the amount of tohit debuffs darks put on things it can be reliable to use in mid battle without bein interupted.

2: consider puttin some tohitdebuffs into darkest nite

3: mayb put some damage resistance into shadow fall.

thats what i am plannin to do for my def anyway... guess i'll soon find out if it works or not.

I've not played a Dark/Dark Corruptor, but I'll have a stab at answering these questions from a D3 perspective

1) Tenebrous Tenticles is worth slotting for damage. Combined with Fearsome Stare and Nightfall it forms a very nice set of cones indeed. The defender damage is by no means massive, but it certainly ok, and should be better on a corruptor anyway.

2) Shadowfall does not stack with stealth. It does, however stack with Super Speed.

3) Fluffy can be slotted in all sorts of ways. Post ED I'm going for 3 accdebuffs and 1 other, which will either be an acc or a recharge depending on what I am doing at the time. Others find putting hold durations or heals in is effective.

The only other points I'd make is that I'd put acc debuffs in Darkest Night over end reducers, especially once you have stamina. Even if it only works at 75% defender value (no idea if it does) it is an awsome debuff. When combined with all the other debuffing you put out, especially if you slot fluffy for it, you should have no problem flooring the accuracy of an even con AV by the late 30s.

I'd also change the endreds in combat jumping and super jump to jump enhancements, as both of them are very end light anyway.

Build looks good to only suggestions I'd make would be to take MoonBeam as soon as possible - great snipe attack avaliable early on, and maybe swap Health for Hurdles - you've already got two jump powers, and although Health isn't brilliant a slightly faster health recovery doesn't hurt

Ive re-aranged my slotting a bit for tenticles and the darkest night but i have no idea about where to put moonbeam, dark blast and gloom are just far more spamable at low lvls making mission a breeze.
I dont think i will bother with it atm.

If i were to make a dark corruptor it would propably look something like:

01 : Twilight Grasp acc(01) hel(11) hel(11) hel(37)
01 : Gloom acc(01) dam(3) dam(5) dam(7)
02 : Dark Blast acc(02) dam(3) dam(5) dam(7)
04 : Tar Patch recred(04) recred(17) slw(19)
06 : Darkest Night endred(06) endred(15) thtdbf(17) thtdbf(19)
08 : Hasten recred(08) recred(9) recred(9)
10 : Hurdle jmp(10)
12 : Night Fall acc(12) dam(13) dam(13) dam(15)
14 : Super Speed runspd(14)
16 : Health hel(16)
18 : Tenebrous Tentacles acc(18) dam(37) dam(40)
20 : Stamina endrec(20) endrec(21) endrec(21)
22 : Fearsome Stare acc(22) ferdur(23) ferdur(23) recred(25) ferdur(25) thtdbf(27)
24 : Hover fltspd(24)
26 : Shadow Fall endred(26) damres(27) damres(36) defbuf(36) defbuf(36) defbuf(37)
28 : Petrifying Gaze acc(28) hlddur(29) hlddur(29) hlddur(31)
30 : Dark Pit acc(30) disdur(31) disdur(31) disdur(34)
32 : Blackstar acc(32) dam(33) dam(33) dam(33) recred(34) recred(34)
35 : Fly fltspd(35)
38 : Dark Servant acc(38) hel(39) hel(39) hel(39) hlddur(40) hlddur(40)

Not taking moonbeam as found it useless on high levels with my main.
Dark pit is very good, especially combined with TT.
SS to stack with shadow fall for invis.