As far as I know, Weave gives a measly 5-6% defense when 3-slotted with SOs, which makes it pretty much useless in my book ... now of course, being a Brute I SMASH PUNY BOOK! 
But seriously, Weave was great once, but like Combat Jumping it isnt worth it now.
I have Weave on my Tank and I rate it. However it has a base defence of 4.33% for a tanker. That's not very much, 6.75% when 3 slotted. For a Brute it is 3.25% base, which means about 5% defence 3 slotted. Also it is more expensive to run than your Fire Armours, such as Fire Shield.
The reason I like it for my tank is that it stacks with his other defensive powers, Tough Hide, Invincibility and Combat Jumping to provide a reasonable base defence. However Fire Brutes don't get defence in their powers so you have nothing to stack it with ( except perhaps Combat Jumping for around 10% defence ).
I wouldn't imagine that it will make your Brute much less squishy.
@Unthing ... Mostly on Union.
Yeah I took tough but didnt bother with weave on my brute.
cool, thanks. it's kinda what i was expecting. but i'm still stuck... if i stack it with cj then thats surely 10% less damage so there is still a plus to it. as tesco say - every little helps. theres so many good powers in DM/FA that i'm not gonna be able to get them all. What is the defence buff of the defence leadership skill? thats about 5% isnt it? so would that be more useful than weave? (although much more irritating to own)
You wouldn't happen to be Mrmotivator from DAoC (hib/pry), would you? :>
nope, and i dont know what that means either
nope, and i dont know what that means either
well, despite managing to double post 
i have tested it on test server and am going with midnight grasp over weave. purely cause an extra attack and immob(which has decent damage actually) will be handy in pvp i hope.
thanks guys
Maneuvers from the Leadership Pool gives 2.5% defence and costs more than Weave to run.
If you have Combat Jumping already and are fighting even level enemies, they are currently hitting 47.5% of the time.
If you add a 3 slotted Weave to this they will hit about 40.75% of the time. So it means that with Weave you take 85% of the damage without Weave.
As higher level enemies get more accurate, against +2 you are looking at around 88% of the damage and +4s it is something like 90% of the damages you would take without weave.
So this means you can last 10% longer in theory against most enemies, if endurance isn't a problem that is probably worthwhile, but for most it is and Weave is quite an expensive toggle.
@Unthing ... Mostly on Union.
Bit late to post this as you've already decided but playing DM without Midnight Grasp is like buying a Mercedes and putting a Fiat engine in it. Underpowering yourself effectively.
"Well, they found my diary today.
They were appropriately appalled
at the discovery of the eight victims
They're now putting it all together.
Women wrapped in silk
with one leg missing
Eight legs, one body, silk,
spider, brilliant!"
tbh with DM/FA i dont really need single target powers except for bosses/AV's but it seems ok. has a fair chunk of end it uses tho.. need to slot for end redux methinks.
This may have been covered before, but I have heard lots of people say weave is useless these days. i was just ready to use my hard won respec, and thought "hang on! if weave sucks, i'll be really annoyed that i didnt try midnight grasp" i'm going to try them out on test, but what do you think of weave for a modern brute? It doesnt help with SMASHing, but it maybe keeps a squishy fire brute alive longer....