diff --git a/docs/re/clock-origin-blocked-boot-has-no-title.md b/docs/re/clock-origin-blocked-boot-has-no-title.md
index c5328e65..73223d3d 100644
--- a/docs/re/clock-origin-blocked-boot-has-no-title.md
+++ b/docs/re/clock-origin-blocked-boot-has-no-title.md
@@ -73,6 +73,43 @@ it, which these untapped runs do not. Whether the boot title and the post-movie
 title are the same screen with the same clock is **not established**, and the
 origin may differ between them.
 
+## The long capture was RUN, and it is still short — with the numbers to size the next one
+
+Option 2 above was attempted this iteration: `FRAMES=8000 MAXDRAWS=400000`, 700 s.
+
+```
+frames captured        0 .. 5954
+last movie luma frame  5954          <- still in the movie at the end
+UI quads after it      0
+draws logged           24 213  of a 400 000 cap
+```
+
+**Neither cap fired.** The run ended on the script's **wall-clock timeout**, not on
+frames or draws, so the fix is simply a longer window — nothing about the method
+is wrong.
+
+Sizing it from what this run measured rather than from a guess:
+
+| | |
+|---|---|
+| presents consumed by the two splashes | ~460 |
+| movie length ⟨disc⟩ | 137.714 s at 30.000 fps = **4 131 decoded frames** |
+| presents per decoded frame ⟨capture⟩ | **2** |
+| ⇒ presents to the end of the movie | ~**8 260** + 460 ≈ **8 700** |
+| reached here | 5 954 (~**68 %**) |
+| achieved rate | ~22 presents/s armed |
+| ⇒ armed seconds needed | ~**400 s**, plus boot |
+
+**So: `FRAMES=9000`, timeout ≥ **1200 s**.** 700 s was not enough and 8000 frames
+would have been.
+
+📌 One saving available: the `h=` texture content hash reads guest memory on every
+sampled texture and the movie binds three planes per draw. **The clock-origin
+measurement needs vertex alpha, not texture hashes**, so a build without that field
+would run materially faster. The field is currently unconditional in
+`tools/canary-patches/0004`; putting it behind its own cvar is the obvious
+improvement and is not done.
+
 ## Reach
 
 ⟨capture⟩ ×3, one machine, English locale, `NOTAP=1`, 600 presents. The negative