Totally agree. Quiet (or even, as I said, introverted) doesn't equal shy. Shy suggests a lack of confidence, the former doesn't. As you say, he mostly strikes you as laid back. I think Dave & Adrian are probably quite similar characters (personality-wise) off-stage.
On his bass playing, harrisdevot --it's pretty good. It's well mixed and booming i.e. typically Metal & heavy. Very much integrated with the guitars in the mix. It's obviously nothing like Steve's playing, which is very clean (although clattering, particularly live, when you hear his strings hit his pickups) and very rhythm based (with unusually guitar-like chord work sometimes). I don't listen to a fantastic amount of modern Metal, but it's pretty proficient sounding. I think Adrian plays bass on most of the tracks, except one where I noticed Mark Clayden (founder member of Pitchshifter) featured with "additional bass". I think Awoken Broken is a really, really decent album. It's seems to get better every time I listen to it. Well worth a listen for those who haven't purchased yet.
And that's a very fitting title. 
