If you hate DRS, a 2nd detection zone would be the worst idea ever. A guy who was passed would then be able to have a go at re-passing despite being slower, how’s that for artificial racing? Even if you could position them exactly halfway around the track from each other, it would be hard to pull out a 1s lead in half a racing lap.
Of course, it was say 1/3 of the way round the track and a driver overtook on the second DRS, then it would probably be enough distance.
What we need is intelligent placing of the zones. In Valencia I think we may have that.