diff --git a/flow/designs/sky130hd/chameleon/rules-base.json b/flow/designs/sky130hd/chameleon/rules-base.json
index 8c0d8d48b1..5fe209b319 100644
--- a/flow/designs/sky130hd/chameleon/rules-base.json
+++ b/flow/designs/sky130hd/chameleon/rules-base.json
@@ -38,11 +38,11 @@
         "compare": "<="
     },
     "cts__timing__setup__ws": {
-        "value": -0.962,
+        "value": -1.33,
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -6.72,
+        "value": -12.3,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -54,15 +54,15 @@
         "compare": ">="
     },
     "globalroute__antenna_diodes_count": {
-        "value": 200,
+        "value": 249,
         "compare": "<="
     },
     "globalroute__timing__setup__ws": {
-        "value": -0.943,
+        "value": -1.26,
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -5.7,
+        "value": -11.4,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -90,11 +90,11 @@
         "compare": "<="
     },
     "finish__timing__setup__ws": {
-        "value": -0.881,
+        "value": -1.14,
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -6.91,
+        "value": -8.2,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
diff --git a/flow/designs/sky130hd/gcd/config.mk b/flow/designs/sky130hd/gcd/config.mk
index 9c1e215a1c..40784a9535 100644
--- a/flow/designs/sky130hd/gcd/config.mk
+++ b/flow/designs/sky130hd/gcd/config.mk
@@ -7,7 +7,7 @@ export SDC_FILE      = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.
 # Adders degrade GCD
 export ADDER_MAP_FILE :=
 
-export CORE_UTILIZATION = 40
+export CORE_UTILIZATION = 38
 export TNS_END_PERCENT = 100
 export SWAP_ARITH_OPERATORS = 1
 export OPENROAD_HIERARCHICAL = 1
diff --git a/flow/designs/sky130hd/gcd/rules-base.json b/flow/designs/sky130hd/gcd/rules-base.json
index f89b0121f4..70cad88569 100644
--- a/flow/designs/sky130hd/gcd/rules-base.json
+++ b/flow/designs/sky130hd/gcd/rules-base.json
@@ -42,7 +42,7 @@
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -68.8,
+        "value": -70.3,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
diff --git a/flow/designs/sky130hd/jpeg/rules-base.json b/flow/designs/sky130hd/jpeg/rules-base.json
index c0e11f4e05..11452c100b 100644
--- a/flow/designs/sky130hd/jpeg/rules-base.json
+++ b/flow/designs/sky130hd/jpeg/rules-base.json
@@ -42,7 +42,7 @@
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -59.8,
+        "value": -73.8,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -62,7 +62,7 @@
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -113.0,
+        "value": -131.0,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -94,7 +94,7 @@
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -42.2,
+        "value": -55.1,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
diff --git a/flow/designs/sky130hd/microwatt/rules-base.json b/flow/designs/sky130hd/microwatt/rules-base.json
index d57dbf012f..5ecab77414 100644
--- a/flow/designs/sky130hd/microwatt/rules-base.json
+++ b/flow/designs/sky130hd/microwatt/rules-base.json
@@ -42,7 +42,7 @@
         "compare": ">="
     },
     "cts__timing__setup__tns": {
-        "value": -345.0,
+        "value": -356.0,
         "compare": ">="
     },
     "cts__timing__hold__ws": {
@@ -62,7 +62,7 @@
         "compare": ">="
     },
     "globalroute__timing__setup__tns": {
-        "value": -306.0,
+        "value": -345.0,
         "compare": ">="
     },
     "globalroute__timing__hold__ws": {
@@ -86,7 +86,7 @@
         "compare": "<="
     },
     "detailedroute__antenna_diodes_count": {
-        "value": 1352,
+        "value": 1513,
         "compare": "<="
     },
     "finish__timing__setup__ws": {
@@ -94,7 +94,7 @@
         "compare": ">="
     },
     "finish__timing__setup__tns": {
-        "value": -305.0,
+        "value": -349.0,
         "compare": ">="
     },
     "finish__timing__hold__ws": {
diff --git a/flow/platforms/sky130hd/setRC.tcl b/flow/platforms/sky130hd/setRC.tcl
index a5dcc7f09d..669ce0b351 100644
--- a/flow/platforms/sky130hd/setRC.tcl
+++ b/flow/platforms/sky130hd/setRC.tcl
@@ -1,12 +1,9 @@
-# correlateRC.py gcd,ibex,aes,jpeg,chameleon,riscv32i,chameleon_hier
-# cap units pf/um
 set_layer_rc -layer li1 -capacitance 1.499e-04 -resistance 7.176e-02
-set_layer_rc -layer met1 -capacitance 1.72375E-04 -resistance 8.929e-04
-set_layer_rc -layer met2 -capacitance 1.36233E-04 -resistance 8.929e-04
-set_layer_rc -layer met3 -capacitance 2.14962E-04 -resistance 1.567e-04
-set_layer_rc -layer met4 -capacitance 1.48128E-04 -resistance 1.567e-04
-set_layer_rc -layer met5 -capacitance 1.54087E-04 -resistance 1.781e-05
-# end correlate
+set_layer_rc -layer met1 -capacitance 1.72375E-04 -resistance 1.20565E-03
+set_layer_rc -layer met2 -capacitance 1.36233E-04 -resistance 1.22132E-03
+set_layer_rc -layer met3 -capacitance 2.14962E-04 -resistance 1.66281E-04
+set_layer_rc -layer met4 -capacitance 1.48128E-04 -resistance 1.68093E-04
+set_layer_rc -layer met5 -capacitance 1.54087E-04 -resistance 1.83558E-05
 
 set_layer_rc -via mcon -resistance 9.249146E-3
 set_layer_rc -via via -resistance 4.5E-3