diff --git a/Amiga-Graphics:-Fragments-of-Facts.md b/Amiga-Graphics:-Fragments-of-Facts.md
index e4d8767..dc97a7d 100644
--- a/Amiga-Graphics:-Fragments-of-Facts.md
+++ b/Amiga-Graphics:-Fragments-of-Facts.md
@@ -25,6 +25,8 @@ Bitmap data fetch start time is programmable but may not begin earlier than slot
 
 The Blitter will yield every fourth slot if BLTPRI in DMACON is clear.
 
+The Copper will use odd-numbered slots only; those are the same slots otherwise available to the CPU during bitplane fetching in low-res when using four or fewer bitplanes.
+
 ## Bitplane Fetches
 
 ### Low-resolution