diff --git a/docs/re/BACKLOG.md b/docs/re/BACKLOG.md
index 2dbd507b..645904a0 100644
--- a/docs/re/BACKLOG.md
+++ b/docs/re/BACKLOG.md
@@ -6826,3 +6826,31 @@ outermost (`_e_root` 19, `_f_root` 18, `_break_root` 13, bare 30). Bare-parent
 test: **`_ALL` 17/17**, `_root` 64/87, `_break` 15/30, and 🔑 **`_e`/`_f` 0 of
 135** — asset-side confirmation that effects are authored per faction with no
 faction-neutral original.
+
+---
+
+## ✅ 2026-08-28 — the last 9 effects are genuinely unshipped; `wep_85` explains two
+
+Item (a). `EF_IDX_` proved prefixes exist, so the residual got the same treatment
+across every carrier. Censusing prefixes over all 36 effect-carrying `.xpr` gives
+**seven**: `EF_IDX_` 223 names, `mdl_` 45, `EF_IDX_mdl_` 45, `VolumeLine_` 10,
+`GN_` 10, `GN__` 6, plus bare.
+
+✅ **Testing all nine against all seven: 0 of 9 resolve.** ⚠️ This zero has force
+where the earlier disc-wide zero did not — the control shows each prefix
+genuinely carries names the same search reads (223/45/45/10/10/6), so the
+instrument works on the population being asked about. The nine are **bound by a
+datasheet field and shipped in no package**.
+
+🔑 **Two of them belong to `wep_85`, a declared-but-unshipped weapon.**
+`Weapon_DSaber_P_wep_85_Beam` is real in the data (24 uses, with `Shell_`,
+`WeaponCannonName_`, `WeaponShellName_` siblings, and `GameModel_eff_m010_wep_85`
+/ `_m011_` declaring the effects) — but **the weapon packages stop at 84**: 59
+`rou_f001_wep_NN.xpr` files, 00–84 with gaps, no 85. One cut asset accounts for
+two of the nine. ⚠️ No contradiction with "every weapon is placed — 131": that
+partition is declared × *mounted*, not whether a package ships.
+
+🟡 **Seven remain unaccounted**: `eff_e0044`, `eff_f0002`, `eff_f0002_barn`,
+`eff_h308`, `eff_j002_e01`, `eff_j002_e02`, `eff_n0071`. ❔ The `.xpr` route is
+exhausted under every prefix the disc uses; a different container or a runtime
+generator is the remaining possibility.
diff --git a/docs/re/structures/unit-substructure-records.md b/docs/re/structures/unit-substructure-records.md
index 10b6c94f..3cd87632 100644
--- a/docs/re/structures/unit-substructure-records.md
+++ b/docs/re/structures/unit-substructure-records.md
@@ -517,3 +517,50 @@ parent of an existing node", and `_break` at 15 of 30 is likewise not a plain
 🔑 **`_e`/`_f` never have a bare parent — 0 of 135.** That is independent,
 asset-side confirmation of the faction law: an effect is authored per faction,
 and there is no faction-neutral original for either side to derive from.
+
+### ✅ The last 9 are genuinely unshipped — a controlled zero over seven prefixes
+
+`EF_IDX_` proved prefixes exist, so the residual deserved the same treatment
+across every package rather than one. Censusing prefixes over all 36
+effect-carrying `.xpr` gives **seven** in use:
+
+| prefix | names it carries |
+|---|---|
+| `EF_IDX_` | 223 |
+| `mdl_` | 45 |
+| `EF_IDX_mdl_` | 45 |
+| `VolumeLine_` | 10 |
+| `GN_` | 10 |
+| `GN__` | 6 |
+| *(bare)* | the rest |
+
+Testing all nine unlocated names against all seven: **0 of 9 resolve.**
+
+⚠️ **This zero has force where the earlier disc-wide zero did not**, and for the
+stated reason: the control shows each prefix genuinely carries names the same
+search reads — 223, 45, 45, 10, 10, 6. The instrument demonstrably works on the
+population it is being asked about.
+
+So the nine are **bound by a datasheet field and shipped in no package**:
+`eff_e0044`, `eff_f0002`, `eff_f0002_barn`, `eff_h308`, `eff_j002_e01`,
+`eff_j002_e02`, `eff_m010_wep_85`, `eff_m011_wep_85`, `eff_n0071`.
+
+### 🔑 Two of the nine belong to `wep_85` — a declared weapon with no package
+
+`eff_m010_wep_85` and `eff_m011_wep_85` name a weapon, and the weapon is real in
+the data: **`Weapon_DSaber_P_wep_85_Beam` (24 uses)** with its
+`Shell_`, `WeaponCannonName_` and `WeaponShellName_` siblings, plus
+`GameModel_eff_m010_wep_85` / `_m011_` declaring the two effects.
+
+But **the weapon packages stop at 84**. `hidden/resource3d/` holds **59**
+`rou_f001_wep_NN.xpr` files numbering 00–84 with gaps, and **no `wep_85`**. So
+`wep_85` is a **declared-but-unshipped weapon**, and its two effects go missing
+with it — one cut asset explaining two of the nine.
+
+⚠️ This does not contradict "every weapon is placed — 131 = 105+22+0+4"
+([[weapon-struct-runtime]]): that partition is declared × *mounted in a loadout*,
+which is a different question from whether a package ships.
+
+🟡 **Seven remain with no account**: `eff_e0044`, `eff_f0002`, `eff_f0002_barn`,
+`eff_h308`, `eff_j002_e01`, `eff_j002_e02`, `eff_n0071`. The `.xpr` route is now
+exhausted for them under every prefix the disc uses.