I like your helmet mount, a little less noisy and a better perspective than looking through the windscreen. Maybe you could try angling the camera up a little bit to get a bit more distance in the view. I fought with my Veho Muvi for ages to try and get the right setup, but the record start/stop button was a real pain to get to. I'll try a new mount next time!
I found myself willing that blue car to get out of the way and actually breathed a sigh of relief when you were able to pass!