I was always impressed by how natural he sounded he was when speaking. Apparently, he used to do his videos in pretty much one take. Btw, there's a video on YT by someone that used to work for him which I found very interesting, so maybe worth checking out (the channel is called Zooc Does Stuff). I won't link the video here as it contains swearing (I think) although I'm not quite sure about what stance OcUK has with that sort of thing nowadays, as I seem to notice it creeping in the odd post every now and again. I suppose I should read the FAQ...