Mine just hit 47 and I am very much looking forward to the end game.
I've only been running on -1/8 but the xp is ticking over very nicely. I've wasted a lot of inf on other toons so I only have standard io's and I have to rely on consume and healing flames (and the rez occasionally) so I use tough and body mastery. It's so much fun being in the middle of 3 x8 mobs and dropping a heap of aoe's.
I'm earning 50-75mil a day I guess I'll have to sit down and plan out a proper build now.
I love ss/fire - great farmers and with soul AV killers....well mine anyway 
[Union Chat]Sebaddon: If you want to, we will, if you think it's weird, no, that's damz, not us.
[Union Chat]Damz: hey cyber, i am your naked pope for the evening, please confess to me my child
A big thanks to those gave me encouragement with my SS/Fire Brute.
She hit 50, and I decided to unlock her Alpha this morning.
WOW...Trapdoor went down like a little girl..he didn't even have time to call his helpers.
I ended up fighting Honoree and whatshis name at the same time while under the curse of weariness...I gave them both a true Texas whomping..
The arc's last elite boss was the hardest..sorry I can't recall his name...I have a summer headcold right now and am lucky to remember my own name, but I did defeat him without him defeating me even once
And I don't have a single Kinetic Combat in my build, nor any of the sought after, expensive IO sets. I have Weave and Combat Jump, and the Steadfast Unique but other than the Energy Defense bonuses I get from my Eradications, that is all of my Defense.
My mind staggers at what I could do with the IOs all the cool kids have, and the high levels of Defense they give.
SS/Fire is good stuff!
Lisa.
Once again, thanks all
So don't wait for heroes, do it yourself
You've got the power
winners are losers
who got up and gave it just one more try
***Dennis DeYoung