King Penguin wrote:Is it the NW edge of the canopy which is in question, very close to the 19 control circle ?
Yes. Somewhere in that thick black line that is just outside the south-east part of the circle for control 19 was a gate.
The legal route from 18 to 19 is all the way back to the road (on the SW edge of the map section) then back into the school grounds. It's about 500m, so at 4mins/km would take about 2 minutes. The illegal route through the gate is about 80m, and I think some competitors had splits as fast as 30-40 seconds.