diff --git a/test/cong_legacy_test.sh b/test/cong_legacy_test.sh
index 34feb34..7e90b04 100644
--- a/test/cong_legacy_test.sh
+++ b/test/cong_legacy_test.sh
@@ -30,8 +30,8 @@ TIMEOUT=30
 
 for FAMILY in ipv4 ipv6 ; do
 
-for DROP_PERCENT in 0 5 ; do
-
+for DROP_PERCENT in 0 10; do
+ for LATENCY in "delay 100" ""; do
  for CLIENT_OPTS in "" "-R" ; do
    case $FAMILY in
    ipv4)
@@ -56,10 +56,10 @@ for DROP_PERCENT in 0 5 ; do
 	echo "Running ${MODE}..."
 	test_run_cmd_local "ip netns exec $NETNS $IPERF3 -p $PORT -s &"
 	if [[ $MODE != "baseline" ]]; then
-		test_run_cmd_local "$BPFTUNE -dsL -a tcp_conn_tuner.so &" true
+		test_run_cmd_local "$BPFTUNE -dsL &" true
 		sleep $SETUPTIME
 		# warm up connection...
-		for i in {1..20}; do
+		for i in {1..40}; do
 			set +e
 			$IPERF3 -fm $CLIENT_OPTS -p $PORT -t 1 -c $ADDR > /dev/null 2>&1
 			set -e
@@ -121,6 +121,7 @@ for DROP_PERCENT in 0 5 ; do
 
    test_cleanup
  done
+ done
 done
 done
 
diff --git a/test/cong_test.sh b/test/cong_test.sh
index 2792de9..cb7aa0c 100644
--- a/test/cong_test.sh
+++ b/test/cong_test.sh
@@ -30,8 +30,8 @@ TIMEOUT=30
 
 for FAMILY in ipv4 ipv6 ; do
 
-for DROP_PERCENT in 0 5 ; do
-
+for DROP_PERCENT in 0 10; do
+ for LATENCY in "delay 100" ""; do
  for CLIENT_OPTS in "" "-R" ; do
    case $FAMILY in
    ipv4)
@@ -56,10 +56,10 @@ for DROP_PERCENT in 0 5 ; do
 	echo "Running ${MODE}..."
 	test_run_cmd_local "ip netns exec $NETNS $IPERF3 -p $PORT -s &"
 	if [[ $MODE != "baseline" ]]; then
-		test_run_cmd_local "$BPFTUNE -ds -a tcp_conn_tuner.so &" true
+		test_run_cmd_local "$BPFTUNE -ds &" true
 		sleep $SETUPTIME
 		# warm up connection...
-		for i in {1..20}; do
+		for i in {1..40}; do
 			set +e
 			$IPERF3 -fm $CLIENT_OPTS -p $PORT -t 1 -c $ADDR > /dev/null 2>&1
 			set -e
@@ -121,6 +121,7 @@ for DROP_PERCENT in 0 5 ; do
 
    test_cleanup
  done
+ done
 done
 done
 
diff --git a/test/test_lib.sh b/test/test_lib.sh
index 5eb9578..e0ae631 100644
--- a/test/test_lib.sh
+++ b/test/test_lib.sh
@@ -225,10 +225,10 @@ test_setup_local()
 		ip netns exec $NETNS ip link set $VETH1 up
 		ip netns exec $NETNS sysctl -qw net.ipv4.conf.lo.rp_filter=0
 		if [[ -n "$DROP" ]] || [[ -n "$LATENCY" ]]; then
-		 D=$DROP
-		 if [[ -n "$DROP" ]]; then
-		  D="${DROP}%"
+	         if [[ -z "$DROP" ]]; then
+		     DROP=0
 		 fi
+		 D="${DROP}%"
 		 tc qdisc add dev $VETH2 root netem loss ${D} ${LATENCY}
 		 ethtool -K $VETH2 gso off
 		fi