diff --git a/flow/designs/asap7/mock-array/Element/config.mk b/flow/designs/asap7/mock-array/Element/config.mk
index 13d088e04e..7965743b6a 100644
--- a/flow/designs/asap7/mock-array/Element/config.mk
+++ b/flow/designs/asap7/mock-array/Element/config.mk
@@ -30,8 +30,12 @@ export PDN_TCL                = $(FLOW_HOME)/platforms/asap7/openRoad/pdn/BLOCK_
 export DETAILED_ROUTE_END_ITERATION = 6
 
 export MIN_ROUTING_LAYER = M2
+# M5 is the top PDN layer, so don't exceed that.
 export MAX_ROUTING_LAYER = M5
 
+export IO_PLACER_H=M2 M4
+export IO_PLACER_V=M3 M5
+
 export PLACE_PINS_ARGS = -annealing
 
 export GND_NETS_VOLTAGES      =
diff --git a/flow/designs/asap7/mock-array/Element/io.tcl b/flow/designs/asap7/mock-array/Element/io.tcl
index c2501412fa..ebfd7968bb 100644
--- a/flow/designs/asap7/mock-array/Element/io.tcl
+++ b/flow/designs/asap7/mock-array/Element/io.tcl
@@ -42,7 +42,10 @@ proc zip {list1 list2} {
 foreach {direction direction2 names} $assignments {
     set mirrored [zip {*}$names]
     set_io_pin_constraint -region $direction2:* -pin_names [lindex $names 1]
-    set_io_pin_constraint -group -order -pin_names [lindex $names 1]
+    # Test pins across multiple metal layers; so don't group
+    # pins as a group of pins must be on a single metal layer.
+    #
+    # set_io_pin_constraint -group -order -pin_names [lindex $names 1]
     set_io_pin_constraint -mirrored_pins $mirrored
 }
 
diff --git a/flow/designs/asap7/mock-array/config.mk b/flow/designs/asap7/mock-array/config.mk
index 0d3ceb5ce8..7bff8603d9 100644
--- a/flow/designs/asap7/mock-array/config.mk
+++ b/flow/designs/asap7/mock-array/config.mk
@@ -59,8 +59,7 @@ power:
 # Routing by abutment should be easy, limit iterations
 export DETAILED_ROUTE_END_ITERATION = 6
 
-export MIN_ROUTING_LAYER = M2
-export MAX_ROUTING_LAYER = M7
+export MAX_ROUTING_LAYER = M9
 export ROUTING_LAYER_ADJUSTMENT = 0.45
 
 # works with 28 or more iterations as of writing, so give it a few more.
@@ -73,3 +72,6 @@ export MACRO_HALO_Y            = 0.5
 export CTS_BUF_DISTANCE = 60
 
 export ADDITIONAL_FILES = designs/src/mock-array/util.tcl
+
+export IO_PLACER_V = M5 M7
+export IO_PLACER_H = M4 M6