Love to come Marco but am going to have to do a longish road ride Sunday as missing the Saturday CR. Do you normally ride out to Leith or meet there? I usually drive to Westcott, park and take one of several singletrack routes up to the tower, bomb down to Holmbury, up Holmbury Hill then down to Peaslake along BKB, then up to Pitch and work back in reverse via High Ashes Farm to the tower for arguably the best fruitcake and cup of tea in the UK. 0730 start gets me back for lunchtime.
I guess if you ride out, maybe via Reigate Hill and drop down to Dorking/Westcott via Box Hill you can make a day of it.