diff --git a/fuzzers/007-timing/projects/corner.mk b/fuzzers/007-timing/projects/corner.mk
index f332d727..1bfa8d6b 100644
--- a/fuzzers/007-timing/projects/corner.mk
+++ b/fuzzers/007-timing/projects/corner.mk
@@ -32,7 +32,7 @@ build/$(CORNER)/leastsq.csv: build/sub.json build/grouped.csv build/checksub bui
 
 build/$(CORNER)/linprog.csv: build/$(CORNER)/leastsq.csv build/grouped.csv
 	# Tweak rough timing model, making sure all constraints are satisfied
-	ALLOW_ZERO_EQN=$(ALLOW_ZERO_EQN) python3 $(TIMFUZ_DIR)/solve_linprog.py --sub-json build/sub.json --sub-csv build/$(CORNER)/leastsq.csv --massage build/grouped.csv --corner $(CORNER) --out build/$(CORNER)/linprog.csv.tmp
+	ALLOW_ZERO_EQN=$(ALLOW_ZERO_EQN) python3 $(TIMFUZ_DIR)/solve_linprog.py --sub-json build/sub.json --bounds-csv build/$(CORNER)/leastsq.csv --massage build/grouped.csv --corner $(CORNER) --out build/$(CORNER)/linprog.csv.tmp
 	mv build/$(CORNER)/linprog.csv.tmp build/$(CORNER)/linprog.csv
 
 build/$(CORNER)/flat.csv: build/$(CORNER)/linprog.csv
diff --git a/fuzzers/007-timing/solve_linprog.py b/fuzzers/007-timing/solve_linprog.py
index d22e14d1..02ed7396 100644
--- a/fuzzers/007-timing/solve_linprog.py
+++ b/fuzzers/007-timing/solve_linprog.py
@@ -192,7 +192,7 @@ def main():
 
     parser.add_argument('--verbose', action='store_true', help='')
     parser.add_argument('--massage', action='store_true', help='')
-    parser.add_argument('--sub-csv', help='')
+    parser.add_argument('--bounds-csv', help='Previous solve result starting point')
     parser.add_argument(
         '--sub-json', help='Group substitutions to make fully ranked')
     parser.add_argument('--corner', required=True, default="slow_max", help='')
@@ -215,7 +215,7 @@ def main():
         timfuz_solve.run(
             run_corner=run_corner,
             sub_json=sub_json,
-            sub_csv=args.sub_csv,
+            bounds_csv=args.bounds_csv,
             fns_in=fns_in,
             corner=args.corner,
             massage=args.massage,
diff --git a/fuzzers/007-timing/tile_annotate.py b/fuzzers/007-timing/tile_annotate.py
index ffc07a21..af3d3d2a 100644
--- a/fuzzers/007-timing/tile_annotate.py
+++ b/fuzzers/007-timing/tile_annotate.py
@@ -51,7 +51,7 @@ def main():
         default='build/timgrid-vc.json',
         help='tilegrid timing delay values at corner (timgrid-vc.json)')
     parser.add_argument(
-        'fn_ins', nargs='+', help='Input flattened timing csv (flat.json)')
+        'fn_ins', nargs='+', help='Input flattened timing csv (flat.csv)')
     args = parser.parse_args()
 
     run(args.fn_ins, args.out, args.timgrid_s, verbose=False)
diff --git a/fuzzers/007-timing/timfuz_solve.py b/fuzzers/007-timing/timfuz_solve.py
index 684cf05d..de1c5812 100644
--- a/fuzzers/007-timing/timfuz_solve.py
+++ b/fuzzers/007-timing/timfuz_solve.py
@@ -98,7 +98,7 @@ def run(
         corner,
         run_corner,
         sub_json=None,
-        sub_csv=None,
+        bounds_csv=None,
         dedup=True,
         massage=False,
         outfn=None,
@@ -132,8 +132,8 @@ def run(
     Special .csv containing one variable per line
     Used primarily for multiple optimization passes, such as different algorithms or additional constraints
     '''
-    if sub_csv:
-        Ads2, b2 = loadc_Ads_b([sub_csv], corner, ico=True)
+    if bounds_csv:
+        Ads2, b2 = loadc_Ads_b([bounds_csv], corner, ico=True)
         bounds = Ads2bounds(Ads2, b2)
         assert len(bounds), 'Failed to load bounds'
         rows_old = len(Ads)