diff --git a/tests/test-21-rate-slop b/tests/test-21-rate-slop
index 22dc105..7b68e57 100755
--- a/tests/test-21-rate-slop
+++ b/tests/test-21-rate-slop
@@ -13,7 +13,8 @@ function try_tx_rx_rate
     ./self-test testdata-ascii.txt $txr -- $rx_rate || let fail++
 }
 
-for adj in  -8 -5 -3 -2 -1 0 +1 +2 +3 +5 +8
+# for adj in  -8 -5 -3 -2 -1 0 +1 +2 +3 +5 +8
+for adj in  -8 -1 0 +1 +8
 do
     let tx_rate="rx_rate + adj"
     try_tx_rx_rate $tx_rate