PoE frantic_cajun builds

I"m currently playing a Caustic Arrow Pathfinder and it has been very strong and fun. And although I've been able to take down some of the Ubers I'd like the fights to go a bit smoother. I bought my first ever mageblood and was thinking of doing a penance brand or Kinetic Bolt build. Penance brand seems kind of weak at mapping and KB seems like it might get very expensive. I'm also considering just selling the mageblood and dropping another 300+ divines in my CA PF cause it's already pretty insane. Any recommendations or advice? Here's my current PoB.. [