Tell me if Im off base

So, I love Corrupters, Doms, and Controllers. Then I got the idea to play a defender, a AT I have always never enjoyed playing.

Well, the funny thing is that my Force Fields, Dark Blast has now become my most favorite character I have ever made in my entire time playing this game.

I had altitis and well now I just cant stop playing this defender.

My question is, that I been amping up my accuracy debuffs on Gloom, and Dark Blast, and the Tentacles (Which I love love love)

Now if Force Fields work to deflect damage outright and not resist it, it would seem that Dark and Forcefields would be the best combo ever, because Im messing with their accuray,which lowers it, but by increasing mine and others defense means more deflections.

Is that an accurate statement? Or have I completely missunderstood this synergy...or lack there of.

Sort of, yeah.

Force Fields by itself will put your team at the Defence soft-cap just using Manouvers, Disersion Bubble, and Deflection and Insulation Shields and slotting them.

So if you take all these powers and everyone stays inside your Dispersion Bubble, and the enemy has no +to Hit or defence debuffs, then the -To Hit in Dark Blast is wasted.

But, break any of these conditions, and it helps put your team back to the soft cap. And the To hit debuffs also help keep you safe. With Manouvers and Dispersion, you'll only have 22% defence or so, maybe a bit more for Hover, Combat Jumping or the odd set bonus.
Three unslotted Dark Blast powers will put you at the soft cap against even con enemies. Personally, I'd slot for damage rather than -To Hit, because the damage will always be used whereas the extra To hit will often be wasted.

So Dark Blast is like extra insurance for your team (which they often wont need), but synergises really well with Force Fields for keeping yourself safe.

I wouldn't play this combo myself because its too defensive. I enjoyed FF with Sonic because it provided me with some offensive debuffs on top of my mighty defensive abilities of FF. But, it is an excellent pairing for team and personal safety. And if you're diggin it to the exclusion of all alts, then its the best combo ever. Well, this week or month..

To the OP, as Dr. Mike said, it's extra insurance for your teammates, but it's a great defensive synergy for your defender. I don't know if you took or care for Dark Pit, but it synergizes very well with repulsion bomb. You can fashion yourself to be an AoE stun machine.

To expand a little bit you're geneerally better off slotting the attacks for damage instead of -to hit. Since a FF Defender provides softcapped defenses anyway the main use for -to hit is to counteract defense debuffs and the base values alone are pretty good for that.

You might also want to read up on the attack mechanics:
http://wiki.cohtitan.com/wiki/Attack_Mechanics

/Dark does have a lot of good synergy with FF, because it helps with your personal defense, as others have mentioned, and it has a self heal. It also deals pretty impressive damage for a Defender set, although you pay for that in End cost. While it lacks the -Res of /Sonic, EVERYTHING else lacks the -Res of Sonic, and so it's probably a pretty good second choice.

I will agree on slotting for damage instead of -Acc debuff, while those debuffs can be impressive when stacked, keep in mind it's a secondary effect of an attack, and thus won't be as powerful overall as a true debuff power. (Like in Dark Miasma) The best thing to do is keep an eye out for useful Acc debuff IOs you can use, like those which give Acc or End reduction. Then you can throw in one or two with Acc debuffs to get a good Set bonus. Make sure you three slot damage first, but you can slot out to six slots and work a Acc Debuff Set in there once you get to the high levels.

Wow...Ok. I made some changes and I see your points. The only one I kept the -acc was in dark blast. Mainly because it's quick and I can proc it lots. It does seem to help my teammates though which is good for me.

Funny though, originally I was going to go sonic. I went dark because well...Sonics sound effects melt my already fragile mind....the meds help, but not enough.

Plus...Tentacles! I dont even know if Tentacles is a super awesome power, but it looks awesome so it's good enough for me.

Ill slot more for damage, because that seems to be where I am lacking.

Dark Pit is something I just picked up. It's slotted right now for one recharge rate, one accuracy and one disorient durration.

Thanks again for all the help.

I am having fun, so I guess thats what matters.

Dark really helps you with your personal defenses(Important for a good FF'er), and if you slot your cones well(procs and frankenslotting) you will rival Rad in AoE damage.

I am going to disagree with all the posts here and say you should end up slotting those dark blasts for to-hit-debuff AND damage. The exception will be the tentacles, which you will want to slot for range and immobilize too, so you can't really do all the damage and to-hit-debuff (THD for short) on them that you'd want. Range is extra important for cone attacks, because the far end of the cone is the biggest width, and range makes the cone go further! So range increases the area covered by a cone by a lot, making it very worthwhile.

"frankenslotting" is the way to do this. you can get an acc/THD and an acc/dam and two THD and two DAM and have fully slotted damage, THD, and more than the equivalent of one accuracy enhancement as well. For one example, for say, Gloom You can do this starting at level 7, though I guess I would recommend waiting till the 20s before bothering, unless you just happen to get one somehow, or have tons of inf, or level super slow like me

At level 47 you can also use Hami-Os for acc/THD and damage/range on the cones. These are nice combos. damage/mez is also great for Tentacles. damage/range and damage/mez Hami-Os tend to be some of the least expensive Hami-Os, and acc/THD is pretty cheap too as Hami-Os go.

I do not have a ff/dark defender but I do have an emp/dark defender and a storm/dark defender who I play pretty much (the emp/dark is level 50 and the storm/dark is in the 30s but I have had her since my first month of CoH and she was my main for couple months back in 2004, and I still play her every so often) so I know dark blast pretty well.

The first level dark blast you have to take. Gloom is a very good choice, it does good damage and lot of debuff, recharges quickly, and has skulls on it Moonbeam is not a great choice, interruptable, doesn't really do very good damage for the extra hassle. Tentacles are vital. The other cone (Nightfall?) is also vital. You need to learn the range/angle on these so you can jump from one to the other on the same target group, takes a little practice but it works very well once you know how.

I always skip the knockback cone as it causes more trouble than it's worth, I think. On a FF/dark though, it might be useful. FF has a lot of knockback too. (so does storm, though)

Dark Pit is nice but a really low amount of stun, it needs something to stack with. I thought it would stack great with Thunderclap but I ended up respec'ing out of both Thunderclap and Dark Pit and it made my storm/dark build much better. She solos mostly dependent on her THD to keep safe - from both the dark blast and the Hurricane. Storm brings a bit of extra damage from the lightning and tornado and freezing rain, but not really all that much...