diff --git a/fuzzers/074-dump_all/jobtiles.tcl b/fuzzers/074-dump_all/jobtiles.tcl
index c29b207c..d4468a2e 100644
--- a/fuzzers/074-dump_all/jobtiles.tcl
+++ b/fuzzers/074-dump_all/jobtiles.tcl
@@ -50,6 +50,8 @@ proc lookup_speed_model_name {name} {
 
 # For BSW_INT_LONG_MUX, use the model from BSW_INT_HLONG_MUX.
 # This isn't exactly correct, but it is a better model to use.
+# BSW_INT_LONG_MUX is a tl_buffer (which we don't really understand), and
+# BSW_INT_HLONG_MUX is not.  This subsitution appears good enough for now.
 set int_hlong_mux [lookup_speed_model_name BSW_INT_HLONG_MUX]
 set int_long_mux [lookup_speed_model_name BSW_INT_LONG_MUX]
 
diff --git a/utils/create_timing_worksheet_db.py b/utils/create_timing_worksheet_db.py
index 3680cc57..845b7af8 100644
--- a/utils/create_timing_worksheet_db.py
+++ b/utils/create_timing_worksheet_db.py
@@ -126,8 +126,8 @@ class Net(object):
     def extend_rc_tree(self, ws, current_rc_root, timing_lookup, node):
         rc_elements = []
 
-        # LV nodes have a workaround applied because of a working in the
-        # pip timing.
+        # LV nodes have a workaround applied because of a work around in the
+        # pip timing data.
         is_lv_node = any(
             wire['name'].split('/')[1].startswith('LV')
             for wire in node['wires'])