Have only just noticed this thread. Sorry!
Yes, I did the 52 mile route as well and loved the fast, flat and closed roads which enabled me to complete the course in an 'official' 3h-01m.
A bit gutted not to have gone under 3-hours, and had I not stopped for some water at the feed stop, I probably would have, so will probably have another go next year.
Was riding my white Pinarello Dogma.