diff --git a/flow/designs/asap7/aes/config.mk b/flow/designs/asap7/aes/config.mk
index 9dc285d86c..0d310cc6b8 100644
--- a/flow/designs/asap7/aes/config.mk
+++ b/flow/designs/asap7/aes/config.mk
@@ -8,7 +8,7 @@ export SDC_FILE      = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.
 
 export ABC_AREA                 = 1
 
-export CORE_UTILIZATION         = 40
+export CORE_UTILIZATION         = 70
 export CORE_ASPECT_RATIO        = 1
 export CORE_MARGIN              = 2
 export PLACE_DENSITY            = 0.65
diff --git a/flow/designs/asap7/aes/rules-base.json b/flow/designs/asap7/aes/rules-base.json
index aee5cc07ed..4fbd47958b 100644
--- a/flow/designs/asap7/aes/rules-base.json
+++ b/flow/designs/asap7/aes/rules-base.json
@@ -1,6 +1,6 @@
 {
     "synth__design__instance__area__stdcell": {
-        "value": 1928.39,
+        "value": 1920.0,
         "compare": "<="
     },
     "constraints__clocks__count": {
@@ -8,11 +8,11 @@
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 2162,
+        "value": 2049,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
-        "value": 19594,
+        "value": 19328,
         "compare": "<="
     },
     "detailedplace__design__violations": {
@@ -20,11 +20,11 @@
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 1704,
+        "value": 1681,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
-        "value": 1704,
+        "value": 1681,
         "compare": "<="
     },
     "cts__timing__setup__ws": {
@@ -32,7 +32,7 @@
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -1100.0,
+        "value": -226.0,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -52,7 +52,7 @@
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -2170.0,
+        "value": -846.0,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -64,7 +64,7 @@
         "compare": ">="
     },
     "detailedroute__route__wirelength": {
-        "value": 72539,
+        "value": 68021,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
@@ -80,11 +80,11 @@
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -42.2,
+        "value": -39.9,
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -825.0,
+        "value": -357.0,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
@@ -96,7 +96,7 @@
         "compare": ">="
     },
     "finish__design__instance__area": {
-        "value": 2269,
+        "value": 2149,
         "compare": "<="
     }
 }
\ No newline at end of file
diff --git a/flow/designs/asap7/gcd/config.mk b/flow/designs/asap7/gcd/config.mk
index 8bfb86c8e2..c98498e7a8 100644
--- a/flow/designs/asap7/gcd/config.mk
+++ b/flow/designs/asap7/gcd/config.mk
@@ -5,8 +5,9 @@ export DESIGN_NAME            = gcd
 export VERILOG_FILES          = $(sort $(wildcard $(DESIGN_HOME)/src/$(DESIGN_NAME)/*.v))
 export SDC_FILE               = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/constraint.sdc
 
-export DIE_AREA               = 0 0 16.2 16.2
-export CORE_AREA              = 1.08 1.08 15.12 15.12
+export CORE_UTILIZATION         = 65
+export CORE_ASPECT_RATIO        = 1
+export CORE_MARGIN              = 0.5
 # The goal of this design is to have a smoketest that builds quickly,
 # that said, this design will go through grt with a 0.99 placement density.
 export PLACE_DENSITY          = 0.35
diff --git a/flow/designs/asap7/gcd/rules-base.json b/flow/designs/asap7/gcd/rules-base.json
index 5b577397e3..815558c3d0 100644
--- a/flow/designs/asap7/gcd/rules-base.json
+++ b/flow/designs/asap7/gcd/rules-base.json
@@ -8,11 +8,11 @@
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 52,
+        "value": 50,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
-        "value": 531,
+        "value": 473,
         "compare": "<="
     },
     "detailedplace__design__violations": {
@@ -20,19 +20,19 @@
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 47,
+        "value": 41,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
-        "value": 46,
+        "value": 41,
         "compare": "<="
     },
     "cts__timing__setup__ws": {
-        "value": -53.6,
+        "value": -38.0,
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -281.0,
+        "value": -119.0,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -48,11 +48,11 @@
         "compare": "<="
     },
     "globalroute__timing__setup__ws": {
-        "value": -64.0,
+        "value": -47.4,
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -439.0,
+        "value": -290.0,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -64,7 +64,7 @@
         "compare": ">="
     },
     "detailedroute__route__wirelength": {
-        "value": 1352,
+        "value": 1053,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
@@ -80,11 +80,11 @@
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -48.6,
+        "value": -37.5,
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -270.0,
+        "value": -185.0,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
diff --git a/flow/designs/sky130hd/ibex/config.mk b/flow/designs/sky130hd/ibex/config.mk
index 8e4c3764b5..d2b3429777 100644
--- a/flow/designs/sky130hd/ibex/config.mk
+++ b/flow/designs/sky130hd/ibex/config.mk
@@ -15,7 +15,7 @@ export SDC_FILE      = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.
 # Adders degrade ibex setup repair
 export ADDER_MAP_FILE :=
 
-export CORE_UTILIZATION = 45
+export CORE_UTILIZATION = 50
 export PLACE_DENSITY_LB_ADDON = 0.25
 export TNS_END_PERCENT = 100
 
diff --git a/flow/designs/sky130hd/ibex/rules-base.json b/flow/designs/sky130hd/ibex/rules-base.json
index 4be669d3f9..e36f0c7475 100644
--- a/flow/designs/sky130hd/ibex/rules-base.json
+++ b/flow/designs/sky130hd/ibex/rules-base.json
@@ -8,7 +8,7 @@
         "compare": "=="
     },
     "placeopt__design__instance__area": {
-        "value": 169126,
+        "value": 167557,
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
@@ -64,7 +64,7 @@
         "compare": ">="
     },
     "detailedroute__route__wirelength": {
-        "value": 749863,
+        "value": 728653,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
@@ -96,7 +96,7 @@
         "compare": ">="
     },
     "finish__design__instance__area": {
-        "value": 180708,
+        "value": 179572,
         "compare": "<="
     }
 }
\ No newline at end of file