diff --git a/spectro.sh b/spectro.sh
index d3a65a0..e30d253 100644
--- a/spectro.sh
+++ b/spectro.sh
@@ -99,9 +99,9 @@ echo
 echo "Faster Pi boards require dialing back GPIO speed"
 echo "to work with the LED matrix. For Raspberry Pi 4,"
 echo "this usually means the max '4' slowdown setting."
-echo "For early single-core boards, '0' will often"
-echo "suffice. Try '1' or '2' for anything else. There's"
-echo "no hard-set rule to this. If the Spectro display"
+echo "For Pi 2 or 3, try the '1' or '2' settings. There"
+echo "is no hard-set rule to this, it can vary with"
+echo "matrix and cabling as well. If the Spectro display"
 echo "is glitchy, just re-run this installer, selecting"
 echo "a higher setting until you find a stable value."
 echo "GPIO slowdown setting:"