One thing I forgot about my most recent post - the guys doing the helmet testing told me to tighten my head strap (the one that goes around your temple to the back of your head) - which I did. When I got home, I had a dent in my forehead from where the uncomfortable bloody strap had been jammed into my skin.
That strap is now back on the old setting. Yes, the helmet slid slightly when backwards pressure was placed on it, but if it's too bloody uncomfortable, I won't want to wear it.
The other thing they told me is that from the anecdotal evidence they have collected on bike/car crashes, roundabouts are about the worst place to be on a pushbike. You either get hit from behind by an impatient driver that wants to overtake you in a one lane roundabout (almost happened to me today, thanks to a dickhead in an Audi, who I caught at the next lights), or you get hit from side on by someone that fails to see you - or decides to not give way because you are small and vulnerable, so you slam into the side of their car.
Make that van, or ute. The most common vehicle that fails to give way to me is the tradesman's ute (or van). The most common type of vehicle that tries to overtake me in a roundabout is the black BMW - replaced today by the black Audi. Seriously, given all the wankers driving BMW's these days, can someone tell me why we didn't nuke the Germans as well, just for the heck of it?