Steve and I are starting at 8:30 from LBC and will loop back around to pick up the 9:30 group - then I plan to run for an hour after the ride if anyone wants to join me.
If you use the posted 100 route you can go the first 25 then turn right on Burke Hollow, this picks up about mile 75 on the 100 cue sheet. Take the loop back and it will give you around a 50 mile total route - at least half of it downhill!
here's 55 starting at 8:30 - doing 15 and then looping back around to LBC to pick up the 9:30 crowd - if we can keep a 15 mph pace. http://ridewithgps.com/routes/291714