Head-to-Head Coverage Is Still Non-Negotiable

Every catalog diagram shows head-to-head for a reason. Watering longer cannot wet soil the droplet never reaches.

When a retrofit cannot add heads because of hardscape, use strip nozzles, part-circle MPs, or split zones — do not pretend triangles of dry turf are fine.

Measure, do not eyeball. A phone laser and the Hunter radius chart beat "it looks about right."