---
title: Detection Lag 3
description: "### Definition The Guest-mix driver of Detection Lag. The Guest base shifts under the operator's read -- regulars churn out, new Guests churn in -- while totals stay flat enough to look stable. Loyalty bleeds while covers hold, and by…"
url: "https://kb.jeffreysummers.com/docs/detection-lag-3/"
updated: "2026-08-13"
category: "The Operator's Dictionary"
---

# Detection Lag 3

### Definition

The Guest-mix driver of Detection Lag. The Guest base shifts under the operator's read -- regulars churn out, new Guests churn in -- while totals stay flat enough to look stable. Loyalty bleeds while covers hold, and by the time the totals actually move, the regular base is already gone.

### Explanation

The tell isn't in the numbers -- cover counts hold steady the whole time this driver is running. It's in the room itself: fewer faces the operator recognizes, more first-timers, average check drifting one direction with no menu change behind it. The numbers say nothing changed. The room says everything did.

The fix is tracking regular-Guest recognition rate as its own daily metric, separate from covers. The operator, or a named cast member, names every recognized Guest by sight at entry. A drop in recognition rate is the leading indicator of the churn already underway. Covers are the lagging indicator -- by the time they move, the base that was churning has already finished leaving.