diff --git a/dev/pd/readme.md b/dev/pd/readme.md
index caddec0..56ba256 100644
--- a/dev/pd/readme.md
+++ b/dev/pd/readme.md
@@ -4,11 +4,23 @@
 
 ### minimize cache/queues/etc. for eFabless
 
-* the parameters were likely not tested much, and may have dependencies, etc.; see which ones can change and still compile/run simple test
-
+* the parameters were likely not tested much, and may have dependencies, etc.
+* see which ones can change and still compile/run simple test; document dependencies
 
 ### test OpenROAD tools
 
-1. attempt unit synthesis and static timing, using blackbox arrays amd estimated wiring for some pdk
+1. attempt unit (or sub-unit) synthesis and static timing, using blackbox arrays amd estimated wiring for some pdk (equivalent to a CI timing script to catch functional changes that break timing)
+
+* what are the OR steps to do this?
+
+   * floorplan - unbounded?
+   * pins - no placement if no bounds, and relaxed i/o assertions?
+   * tap cells/power dist/etc. - not needed (account for in estimated wiring?)
+   * clock tree synthesis - no (assume ideal clocks + fudge)
+   * iterate
+      * placement
+      * cap/slew/fo checks
+      * setup/hold
 
+* are results consistent with expected cycle time?