diff --git a/.obsidian/plugins/recent-files-obsidian/data.json b/.obsidian/plugins/recent-files-obsidian/data.json
index 30f9f03..e4398e3 100644
--- a/.obsidian/plugins/recent-files-obsidian/data.json
+++ b/.obsidian/plugins/recent-files-obsidian/data.json
@@ -4,10 +4,34 @@
       "basename": "README",
       "path": "README.md"
     },
+    {
+      "basename": "estimating-ergonomics",
+      "path": "estimating-ergonomics.md"
+    },
+    {
+      "basename": "blank-system",
+      "path": "blank-system.md"
+    },
+    {
+      "basename": "automating-pdf-annotation",
+      "path": "automating-pdf-annotation.md"
+    },
+    {
+      "basename": "3-phase-power",
+      "path": "3-phase-power.md"
+    },
     {
       "basename": "fixture-designations",
       "path": "fixture-designations.md"
     },
+    {
+      "basename": "fixtures",
+      "path": "fixtures.md"
+    },
+    {
+      "basename": "full-takeoff",
+      "path": "full-takeoff.md"
+    },
     {
       "basename": "getting-historical-pricing",
       "path": "getting-historical-pricing.md"
@@ -20,22 +44,10 @@
       "basename": "electrical",
       "path": "electrical.md"
     },
-    {
-      "basename": "full-takeoff",
-      "path": "full-takeoff.md"
-    },
-    {
-      "basename": "fixtures",
-      "path": "fixtures.md"
-    },
     {
       "basename": "list",
       "path": "list.md"
     },
-    {
-      "basename": "3-phase-power",
-      "path": "3-phase-power.md"
-    },
     {
       "basename": "pathfinding",
       "path": "pathfinding.md"
@@ -56,10 +68,6 @@
       "basename": "markdown-formatter-cli",
       "path": "markdown-formatter-cli.md"
     },
-    {
-      "basename": "automating-pdf-annotation",
-      "path": "automating-pdf-annotation.md"
-    },
     {
       "basename": "lighting-controls",
       "path": "lighting-controls.md"
@@ -108,10 +116,6 @@
       "basename": "accubid-setup",
       "path": "accubid-setup.md"
     },
-    {
-      "basename": "blank-system",
-      "path": "blank-system.md"
-    },
     {
       "basename": "area-of-refuge",
       "path": "area-of-refuge.md"
@@ -183,22 +187,6 @@
     {
       "basename": "separating-estimating-concerns",
       "path": "separating-estimating-concerns.md"
-    },
-    {
-      "basename": "estimating-philosophy",
-      "path": "estimating-philosophy.md"
-    },
-    {
-      "basename": "fire-alarm",
-      "path": "fire-alarm.md"
-    },
-    {
-      "basename": "estimating-detail",
-      "path": "estimating-detail.md"
-    },
-    {
-      "basename": "estimating-dimensionality",
-      "path": "estimating-dimensionality.md"
     }
   ],
   "omittedPaths": [],
diff --git a/3-phase-power.md b/3-phase-power.md
index ceefc16..7d8110c 100644
--- a/3-phase-power.md
+++ b/3-phase-power.md
@@ -9,3 +9,19 @@ tags:
 The conductors between a voltage source and a load are called lines,
 and the voltage between any two lines is called line voltage.
 The voltage measured between any line and neutral is called phase voltage.
+
+%%
+
+## Scratch
+
+* Poles vs Phases vs Wires
+
+3Ø = 3PH 3W
+3ØY = 3PH 4W
+
+> Phase abbreviations
+> * PH
+> * Φ (capital phi)
+> * Ø (latin O with stroke)
+
+%%
diff --git a/estimating-ergonomics.md b/estimating-ergonomics.md
index 83ca6c0..33bd206 100644
--- a/estimating-ergonomics.md
+++ b/estimating-ergonomics.md
@@ -95,6 +95,26 @@ The most idiomatic alternative to time-indexed takeoffs
 would be to represent them in the space of the drawings,
 then only extend them as necessary.
 
+%%
+
+### Scratch
+
+Minimize takeoff flow disruption
+
+Decouple takeoff (description of work) from assembly selection:
+
+Match takeoff tags against assembly tags, select best
+
+Expect uncertainty
+
+```
+length: 20-30ft
+```
+
+Uniform distribution
+
+%%
+
 ## Flaws of Traditional Patterns
 
 ### Required Hyper-Specificity
@@ -144,7 +164,8 @@ but that doesn't really justify it.
 The problem is that there's nothing linear about electrical installations,
 at best it's a directed acyclic graph.
 You can almost represent that linearly
-if you go down each branch to the end and then pick a new new line,
+if you go down each branch to the end
+and then pick a new new line,
 but that's unideal.
 
 ### Assumed Finality
diff --git a/fixture-designations.md b/fixture-designations.md
index 1cd0981..0eb52ce 100644
--- a/fixture-designations.md
+++ b/fixture-designations.md
@@ -114,17 +114,18 @@ Use assembly `Common Assemblies`/`Device Homeruns in Slab/Deck`
 
 ### Tape Lighting
 
-Also called "cove" or "strip",
+Also called "cove" or "strip" lighting,
 however those terms are less specific
 and potentially confusing.
 
 Use item `FIXTURE LABOR 1/2HR`
-and change `Fct 1` to match the calculated labor.
+and change `Fct 1` to match the calculated labor
+(1 hour per 12 feet).
 
 > [!note]
 > Tape lighting length is limited by the "max power length" of the model
 > (usually measured in millimeters).
-> Max power length is usually 5000 to 15000 mm (about 16 to 49 ft)
+> Max power length is usually 5000-15000mm (~16-49ft)
 > depending on luminous output and voltage.
 
 Separate these fixtures by labor, not length
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