How long is the regular wed ride? I suspect it'll finish too late for me to get back to town? And it hits the train cycle problem departing London at rush hour.
Leave Westcott 1845 sharp (officially, meet time is 1830), ride a couple of hours give or take, pint or 2 in a pub, back to Westcott 2200-2230ish.
It's quite wide ranging and heads off different directions each week. That's one of the brilliant things of riding here. But if you know what you want is the "Surrey Hills trail centre experience" around Peaslake and Winterfold, you may not get that.