On that note I had a 'proper' look at the stretch where I came off using the google-maps feature on Strava the other day (I had only briefly looked before). I noticed the road had a slight bend to the right after a long straight-ish stretch, which makes me think perhaps it was just the excess speed that meant I wasn't able to steer round the corner as quickly as I needed to, rather than a gust of wind like I had thought previously. I remember the couple of seconds just before I went in the ditch, but how I came to be so far across is still a bit of a blur... Anyway, needless to say I won't be going for a KOM on that stretch!