diff --git a/parsers/survex.py b/parsers/survex.py
index 796161b..b5817d3 100644
--- a/parsers/survex.py
+++ b/parsers/survex.py
@@ -1837,9 +1837,7 @@ class LoadingSurvex:
         nlegstotal = 0
         self.relativefilename = path
 
-        # Cache for  survex blocks to save at the end
-        self._pending_parent_saves = set()
-        self._pending_block_saves = set()
+        self._pending_block_saves = set() # Cache for  survex blocks to save at the end
         #self.IdentifyCave(path, svxid, depth)  # this will produce null for survex files which are geographic collections
 
         self.currentsurvexfile = survexblock.survexfile
@@ -2002,12 +2000,12 @@ class LoadingSurvex:
 
                 self.fix_undated(survexblock)
                 self.fix_anonymous(survexblock)
-                # This is the most time-consuming step within *end processing: 47%
+                # This is the most time-consuming step within *end processing: was 47%
                 # Instead of saving parent here, cache for later
                 if hasattr(survexblock, 'parent') and survexblock.parent:
                     self._pending_block_saves.add(survexblock)
                 try:
-                    # This is the second most time-consuming step within *end processing: 35%
+                    # This is the second most time-consuming step within *end processing: was 35%
                     self._pending_block_saves.add(survexblock)
                     # update_fields=["legsall", "legslength"]
                 except Exception:
@@ -2136,8 +2134,8 @@ class LoadingSurvex:
                     # print(f"  ! Block {block} is invalid: {e}")
             try:
                 BATCH_SIZE = 900
-                for i in range(0, len(valid_blocks), BATCH_SIZE):
-                    SurvexBlock.objects.bulk_update(valid_blocks[i:i+BATCH_SIZE], ["legsall", "legslength", "parent"])
+                for i in range(0, len(blocks), BATCH_SIZE):
+                    SurvexBlock.objects.bulk_update(blocks[i:i+BATCH_SIZE], ["legsall", "legslength", "parent"])
             except Exception as e:
                 print(f"\n !! Error in bulk_update for survexblocks: {e}", file=sys.stderr)