I'm pleased the idea of zoning is seen to have some merit. On further thought the zones could be geographically limited and time separated on a set rota.
It may suit the aviators, but I'm less sure how it could help the riders.
Most professional yards do more of their riding in the morning, but with so many people these days working part/flexi/shift hours the happy hackers (the girlies that Beagle so admires) might be riding any time during daylight. They might not find it so easy (esp. in winter) to time their rides with the LL programme.