diff --git a/projects/dataforth-dos/session-logs/2026-06/2026-06-18-mike-dsca-fix2-stage2-3-publish.md b/projects/dataforth-dos/session-logs/2026-06/2026-06-18-mike-dsca-fix2-stage2-3-publish.md
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--- a/projects/dataforth-dos/session-logs/2026-06/2026-06-18-mike-dsca-fix2-stage2-3-publish.md
+++ b/projects/dataforth-dos/session-logs/2026-06/2026-06-18-mike-dsca-fix2-stage2-3-publish.md
@@ -1,5 +1,36 @@
 # DSCA Datasheet Fix 2 — STAGE 2 wire-in, STAGE 3 validator, publish of 68 clean models
 
+## Update: 07:52 PT — per-model slot maps resolve ambiguous DSCA layouts + re-publish of 92
+
+Took on the ambiguous-layout families (models the count-guard skipped because raw_data carries more
+or fewer value-bearing STATUS entries than the template's spec-bearing rows — the test program
+measures slots the printed sheet omits, e.g. DSCA49's 5mA load pair).
+
+New tool `derive-dsca-slotmaps.js`: derives a per-model `slotMap` (absolute statusEntries index per
+spec-bearing row) by greedily matching a staged original's printed values against the DB raw_data
+STATUS entries (same fround formatting), then picking the candidate map that validates against the
+most units. Models are grouped by identical row-name signature and one map is derived per group from
+ALL sibling units — this disambiguates duplicate values (DSCA49-04 alone has only 2 staged units,
+both with 5mA==50mA linearity, so greedy picked the wrong slot; its siblings' 25 units force the
+correct [0,1,2,3,6,7,8,9,11,13,15] map). Stored as `slotMap` in dsca-templates.json. Renderer
+consults slotMap ONLY when the sequential zip fails, so the 88 clean models keep their path (no
+regression).
+
+STAGE 3 re-validation: FINAL-TEST CLEAN **88 -> 92**; 134 more certs render (null 450 -> 316);
+matches 2278 -> 2412; same 6 retest-vintage dirty, no new mismatches. Re-pushed all 92 clean models
+(41,362 serials): **updated=4024 unchanged=36109 created=0 errors=0 skipped=1229** (skips down from
+2165 — ~936 previously-guarded certs now render via slotMap).
+
+DSCA49 family + DSCA40-03 group now clean and live. Still blocked, SEPARATE gap (not layout
+ambiguity): DSCA45-* and most DSCA33-* render null because they have NO spec-reader entries
+(`render-datasheet.js` bails before rendering) — their slotMaps are derived and ready, they just
+need spec coverage. One DSCA33 group (DSCA33-02/03/03A/04/05/1948) didn't reach the slotMap
+validation threshold (best 19/35 units). Commit `e9262f57`.
+
+Net live DSCA Final-Test: 92/126 templated models content-clean. Remaining: 6 retest-vintage,
+DSCA45-*/DSCA33-* missing specs, 1 DSCA33 group below threshold, ~32 models with no DB-matched
+staged unit, and 231 untemplated models (STAGE 1 extension).
+
 ## Update: 07:33 PT — data-driven DSCA load note (DSCA39 footer-artifact fix) + re-publish of 88
 
 Fixed the DSCA39 footer-note artifact properly at the STAGE 1 extractor level. The "Standard