diff --git a/README.md b/README.md
index f8e9f76..b7ffec0 100644
--- a/README.md
+++ b/README.md
@@ -898,7 +898,7 @@
 seemed to control the highlights well and promoted strong edge effects.
 
 
-### Update  04-19-2025: Is Presoaking Necessary?
+### Update 04-19-2025: Is Presoaking Necessary?
 
 The subject of presoaking film before actual development has been an
 on-again, off-again religious debate among serious practioners for
@@ -910,7 +910,40 @@
 cirtical, and you should do your own testing in the matter.
 
 
-All content here is Copyright (c) 2021-2025 TundraWare Inc., Des Plaines, IL USA
+### Update 08-28-2026: Lye And Super-Dilute D-23
+
+The original recommentation for doing high acutance semistand in D-23
+remains 1+9. However, after a fair bit of use, I've determined that
+0.5g/l of NaOH (lye) probably is too much and makes the developer too
+active.
+
+This can result in fairly dense highlights that, while, printable,
+would be better if they were calmed down a bit.  This is even more
+important if you scan negatives.  So, I have switched to using D-23
+1+9 and adding 0.3g/l NaOh.  This still gives full shadow speed but
+reins in the highlights better.
+
+You can play with the exact amount, using more lye for short SBR subjects
+and less for long SBRs. I have had success with amounts down to 0.2g/l.
+
+It is painful to weigh microscopic amount of NaOh.  So, I make up a stock
+solution of 5g NaOH in 500ml of distilled water and store it in a glass bottle.
+
+For example, suppose I have 1 liter of D-23 1+9 mixed up and I want 0.3g
+of lye:
+
+   0.3/5 * 500 = 30ml stock
+
+It is a good idea to record the pH of the stock solution when you
+first mix it, and then check the stock solution each time before use,
+because long term storage can affect it.
+
+As always, handle lye with care and good lab technique, using eye,
+skin, and clothing protection and always adding the lye to the water,
+never the other way around.
+
+
+All content here is Copyright (c) 2021-2026 TundraWare Inc., Des Plaines, IL USA
 
 Permission is hereby granted for non-commercial redistribution by any
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