Cheers for the comments people. I'll try and answer the questions to the best of my slightly-tired-post-work-need-to-kip ability.
The vocals are by myself, indeedy. My music alias used to be the Twisted MC, and I wrote a few filthy hiphop songs, as well as did a handful of dnb tracks with full on MC rhymes. Nowadays, I just add a splash of vocals here and there for some colour.
Van B, I hear your comments and agree. It's not as hard, but that was the intention as I'm bored of mainstream hardstep, so much so that I would actually rather listen to house music, and I've been a dnb head sinse I was 15. So, I tend to move away from that, and go for melodic, hynotic, funky, lyrical etc. Only hard dnb I like is the really evil sounding bowel shakers, but alas, they are one of the hardest types of electronic music to write, and I'm still trying to do a successful evil choon.
Adr, tough question mate, about the synth, especially seeing as there are a few you could be refering to. The main bassline synth around the drop is quite a complex sound. Generated in simsynth with a few square waves and sinewaves and filtering, then bandpassed, then looped. Distorted more into a square wave with some chorus, and sweeping phase was only applied to the second warpy version. It's actually made of two elements, but I forget how I generated the other. I wouldn't like to tag the bassline synth with a name, as it's not really a square wave although it has many characteristics of one, it's just a lot more complex.
Zone Chicken - only problem with chase X is all dnb tracks sound like chase music. It's the tempo!