diff --git a/pipelined/regression/make-tests.sh b/pipelined/regression/make-tests.sh
index c5d3644d6..fe4555ff2 100755
--- a/pipelined/regression/make-tests.sh
+++ b/pipelined/regression/make-tests.sh
@@ -1,14 +1,16 @@
 #!/bin/bash
 
 rm -r work*
-cd ../../tests/imperas-riscv-tests/
 make allclean
 make
-cd ../wally-riscv-arch-test
-make allclean
-make
-make XLEN=32
-exe2memfile.pl work/*/*/*.elf
-cd ../linux-testgen/linux-testvectors
-./tvLinker.sh
-cd ../../../pipelined/regression
+# cd ../../tests/imperas-riscv-tests/
+# make allclean
+# make
+# cd ../wally-riscv-arch-test
+# make allclean
+# make
+# make XLEN=32
+# exe2memfile.pl work/*/*/*.elf
+# cd ../linux-testgen/linux-testvectors
+# ./tvLinker.sh
+# cd ../../../pipelined/regression
diff --git a/pipelined/regression/wkdir/.gitignore b/pipelined/regression/wkdir/.gitignore
new file mode 100644
index 000000000..5e7d2734c
--- /dev/null
+++ b/pipelined/regression/wkdir/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
diff --git a/synthDC/scripts/synth.tcl b/synthDC/scripts/synth.tcl
index 9d6aac68a..368e45f3a 100755
--- a/synthDC/scripts/synth.tcl
+++ b/synthDC/scripts/synth.tcl
@@ -137,6 +137,10 @@ if {$tech == "sky130"} {
 # Set the wire load model 
 set_wire_load_mode "top"
 
+# Set switching activities
+# default activity factors are 1 for clocks, 0.1 for others
+# static probability of 0.5 is used for leakage
+
 # Attempt Area Recovery - if looking for minimal area
 # set_max_area 2000
 
@@ -359,4 +363,4 @@ redirect $filename { report_constraint }
 set filename [format "%s%s%s%s" $outputDir  "/reports/" $my_toplevel "_hier.rep"]
 # redirect $filename { report_hierarchy }
 
-quit 
+#quit