Mauler specing for solo rvrFollow

I have rolled a Mauler finally and am having a lot of fun with him thus far. I do have a few questions though. I am solo 99% of the time in RvR so I am battling with the best spec path to go with. I have read alot about testing on Pendragon about going 50FW, 34 Aura with the rest to Powerstrikes and that the 50 style is very powerful damage if using a full enh bot. I have also heard a lot of talk about going 34 FW or Staff, 45 Aura and rest Powerstrikes for the higher HoT & bubble. I wanted to get the facts from folks who have actually run with this and get your opinions. Thanks.

Imminone-Kay RR1 Mauler
Xonerated-Kay RR6 Necro