Well, flashing that stock kernel has done wonders. Thank you so very, very much!
I will try to find the thread where I was reading about this zergrush exploit working on this phone. I can only assume I'd read it and read this one after and put the two together by mistake. I don't particularly understand the whole thing which is why I liked the idea of this exploit as it keeps things stock.
I will see if I can find that thread and read it carefully.
I think I'll call it a night now, and get to bed. Thanks again.