Hey man. That sucks how the ROM isn't working for you, but I find the stock kernel that came with this, actually gives decent battery life. Whenever I use other kernels I see the 3-5% drain on standby.
Yeah it's odd. The stock kernel for me still wasn't yielding good results. Bounced between the stock, wildmonks, pershoot, and intersects. All horrible. Stinks because this ROM is really, REALLY nice beyond that. I'm no hah2110, but the drain was just intense, lol. about ~1 every 2 minutes just with the screen on.