diff --git a/src/propeller/problems/boolean/mul3.cljc b/src/propeller/problems/boolean/mul3.cljc
index 06364e2..6403bed 100644
--- a/src/propeller/problems/boolean/mul3.cljc
+++ b/src/propeller/problems/boolean/mul3.cljc
@@ -307,6 +307,9 @@
      :max-initial-plushy-size  100
      :step-limit               1000
      :parent-selection         :lexicase
+     :downsample?              true
+     :ds-function              :case-rand
+     :downsample-rate          0.1
      ;:parent-selection         :tournament
      ;:parent-selection         :motley-batch-lexicase
      ;:max-batch-size           [1 2 4 8 16 32 64 128 256]
@@ -314,7 +317,7 @@
      ;:umad-rate                0.09
      :ah-umad-protect-rate     0.001 ;; ah-umad
      :ah-umad-vary-rate        0.1 ;; ah-umad
-     :ah-umad-tournament-size  2 ;; ah-umad
+     :ah-umad-tournament-size  1 ;; ah-umad
      ;:umad-rate                [1/2
      ;                           1/4 1/4 
      ;                           1/8 1/8 1/8