That was my thinking - if your south gate time is say, 1h 25min, someone who has a
PR of 1h 5min would leave 20mins later. It should add for more excitement at the top as people close in on one another. We could leave a stopwatch running at the bottom of the climb and give people start times, then someone else (i.e. probably me or some selfless volunteer with a better time) would need to go up first and catch people arriving, record for posterity etc.
Oh yeah, and I intend to ride the official Diablo challenge, so it definitely won't be that weekend.