Rise Of The Phoenix is alright, unless you've had Soul Transfer then its a bit disapointing.
CJ overcomes the lack of imob protection and lets you move around. I think you can run both that and hover to give you pseudo kb protection but it might be tough and slow at times.
The fire primary is glorious. The fire secondry is alright. I guess the tactic is kill before they can kill you
"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!"
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The fire primary is glorious. The fire secondry is alright. I guess the tactic is kill before they can kill you
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That's the key! 
once you've got fury up you should beheld to run from mob to mob and wipe them out Love my fire/fire brute for that reason! but left him for awhile :P
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I think you can run both that and hover to give you pseudo kb protection but it might be tough and slow at times
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Can someone confirm if it is possible to run hover and CJ simultaneously? I have been getting on ok with Hover so far. With the recent change to swift I can get a decent speed out of Hover.
Also, is it worth trying to fit Aid Self into my build? I have healing flames, which are great, do I really need two heals?
you can't run cj and hover at the same time .. both cancel each other out.
And i shall quote you a sentance a guy told me who only had fire shield,healing flames and aidself told me.
"i don't need shields because i'm a regen tanker"
He told me that when i rezed him for the 8th time.
Defiant's GoEH/MILITIS METUS
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you can't run cj and hover at the same time .. both cancel each other out.
And i shall quote you a sentance a guy told me who only had fire shield,healing flames and aidself told me.
"i don't need shields because i'm a regen tanker"
He told me that when i rezed him for the 8th time.
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I have plasma shield already. Do you think I need the passive shields?
Is there immob protection in Burn? How does it work? Should I just not worry about immob and see it as an achilles heel?
OK, I got a Fire/Fire who is almost level 50. Almost? Yes, that's because I7 came out and I started to level a /Elec. He was my first toon and, although I love him, I like to not feel squishy sometimes.
Answering your questions:
-Yes, if you wanna good mez protection, you'll have to take CJ and Acrobatics. But if you are here just for the fun of it and want wings, here's my advice: Get Hover and Burn. Hpver is a pseudo KB protection. You will spin in the air, but won't fly away. Everytime you use Burn, you'll free yourself from Immobilization and have protection against it for some time (100 secs I believe). But keep in mind that it has a "Fear" component and it won't deal much damage.
-Aid Self: No, you don't need it. Healing Flames is slightly worse than AS, but it can't be interrupted.
-Rise of the Phoenix: People complain about this power, but I believe it's a perfect match for Fire. Why? Because /Fire is about killing fast. With Fire as your Primary and Fiery Embrace, you'll be able to deal lots of damage. But on the other hand, you can't stand as much as the other sets. So if you can't kill quickly, you get a second chance.
-Suggestions: Hasten for FE, some damage mitigation like the Presence Pool
Thanks for your pointers everyone. Did anyone pick up tough? And is it worth it?
One more question if anyone knows the answer. How long does the invulnerablity last after using Rise of the Phoenix?
Avoid the passive, its rubbish and just not needed. I cant speak for Burn (I took CJ/Acro like a good little min-maxer) as Im not taking it for two more levels, nor Rise of the Phoenix (might take it at 49), but I can say that all the stuff about /Fire brutes being really squishy is a load of codswallop.
Ive played 3 brute secondaries to 35+ and my /fire only ever feels weaker than my /elec or /dark against lots of enemies that do psi damage, or against the very rare case of lots of enemies that do cold or toxic damage (but then cold-based enemies do tend to die faster to my fire attacks). In general gameplay my /fire feels just as solid as the /dark and /elec, and against single tough targets he actually feels more solid because his heal is more useable and reliable (my /elec has the unreliable Aid Self, and my /darks Dark Regen needs a few targets for reliability and uses a ton of End even with 3 EndRdx slotted).
I think the perceived squishiness comes from the fact that in teams a /Fire brute, especially one with an AE-heavy primary like Fire/, is a an aggro-magnet because hes outdamaging his teammates (Blazing Aura is the most damaging aura, and Fire Sword Circle is the most damaging AE on a 20sec or less timer - plus we have both Fiery Embrace as well as Build Up to boost damage). You get more attention, so in poor teams you will die more because youre exposed to more danger. Fire-based corruptors sometimes have the same problem 
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The fire primary is glorious. The fire secondry makes it even better.
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Amended for truth
I recently rolled a fire/fire brute. I am well aware that /fire is probably the squishiest of all the brute secondaries but I do not want to be able to tank with it. I already have tank-like brutes and wanted something different.
I have already decided to go the hover/fly route (again I want something different, this is going to be my Wings toon). What I'm after is some general pointers really from people who have played fire/fire. There aren't any decent guides for this type of brute (a few for tanks but I don't want to play as a tank).
One thing I have noticed is a lack of Immob protection that has already caused me to faceplant a few times.
I really want to play this brute as a kind of scrapper (with fury giving me great damage). I'm going to grab most of the primaries, any pointers if any are really bad and should be avoided. Also, what is Rise of the Phoenix like? I'm expecting to die a fair bit so would see this as useful