diff --git a/ase-dp/neb2dimer_dp.py b/ase-dp/neb2dimer_dp.py
index 9842f44..a299278 100644
--- a/ase-dp/neb2dimer_dp.py
+++ b/ase-dp/neb2dimer_dp.py
@@ -41,7 +41,7 @@
 
 # developer only
 os.environ['OMP_NUM_THREADS'] = "omp"
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 step_before_TS = 1
 step_after_TS = 1
 norm_vector = 0.01
diff --git a/ase-dp/neb2sella_dp.py b/ase-dp/neb2sella_dp.py
index cb2e4b1..518282d 100644
--- a/ase-dp/neb2sella_dp.py
+++ b/ase-dp/neb2sella_dp.py
@@ -40,7 +40,7 @@
 
 # developer only
 sella_eta = 0.0002 # 1e-3 ~ 1e-4
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 os.environ['OMP_NUM_THREADS'] = "omp"
 
 # reading part
diff --git a/dimer/neb2dimer_abacus.py b/dimer/neb2dimer_abacus.py
index 86e347d..fe6bb43 100644
--- a/dimer/neb2dimer_abacus.py
+++ b/dimer/neb2dimer_abacus.py
@@ -93,7 +93,7 @@
 step_before_TS = 1
 step_after_TS = 1
 norm_vector = 0.01
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 
 profile = AbacusProfile(f'mpirun -np {mpi} {abacus}')
 
diff --git a/examples/CO-Pt111/neb2dimer/neb2dimer_abacus.py b/examples/CO-Pt111/neb2dimer/neb2dimer_abacus.py
index 863d1b2..0954d57 100644
--- a/examples/CO-Pt111/neb2dimer/neb2dimer_abacus.py
+++ b/examples/CO-Pt111/neb2dimer/neb2dimer_abacus.py
@@ -87,7 +87,7 @@
 step_before_TS = 1
 step_after_TS = 1
 norm_vector = 0.01
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 scale_sigma = 1.0
 
 profile = AbacusProfile(f'mpirun -np {mpi} {abacus}')
diff --git a/examples/CO-Pt111/neb2sella/neb2sella_abacus.py b/examples/CO-Pt111/neb2sella/neb2sella_abacus.py
index 283e31b..4cb0e4b 100644
--- a/examples/CO-Pt111/neb2sella/neb2sella_abacus.py
+++ b/examples/CO-Pt111/neb2sella/neb2sella_abacus.py
@@ -82,7 +82,7 @@
 
 
 # developers only
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 sella_eta = 0.002
 scale_sigma = 1.0
 
diff --git a/examples/Cy-Pt@graphene/neb2sella/neb2sella_abacus.py b/examples/Cy-Pt@graphene/neb2sella/neb2sella_abacus.py
index cfaa983..bfee3d8 100644
--- a/examples/Cy-Pt@graphene/neb2sella/neb2sella_abacus.py
+++ b/examples/Cy-Pt@graphene/neb2sella/neb2sella_abacus.py
@@ -82,7 +82,7 @@
 
 
 # developers only
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 sella_eta = 0.002
 scale_sigma = 1.0
 
diff --git a/examples/H2-Au111/neb2dimer/neb2dimer_abacus.py b/examples/H2-Au111/neb2dimer/neb2dimer_abacus.py
index f02103b..0cf7cd1 100644
--- a/examples/H2-Au111/neb2dimer/neb2dimer_abacus.py
+++ b/examples/H2-Au111/neb2dimer/neb2dimer_abacus.py
@@ -85,7 +85,7 @@
 step_before_TS = 1
 step_after_TS = 1
 norm_vector = 0.01
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 scale_sigma = 1.0
 
 profile = AbacusProfile(f'mpirun -np {mpi} {abacus}')
diff --git a/examples/H2-Au111/neb2sella/neb2sella_abacus.py b/examples/H2-Au111/neb2sella/neb2sella_abacus.py
index 1379f06..d14d953 100644
--- a/examples/H2-Au111/neb2sella/neb2sella_abacus.py
+++ b/examples/H2-Au111/neb2sella/neb2sella_abacus.py
@@ -80,7 +80,7 @@
 
 
 # developers only
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 sella_eta = 0.002
 scale_sigma = 1.0
 
diff --git a/sella/neb2sella_abacus.py b/sella/neb2sella_abacus.py
index 25abdc7..d737e58 100644
--- a/sella/neb2sella_abacus.py
+++ b/sella/neb2sella_abacus.py
@@ -84,7 +84,7 @@
 
 
 # developers only
-neb_sort_tol = 1
+neb_sort_tol = 0.5 # set 0 to shut down
 sella_eta = 0.005 # 0.002 ~ 0.01
 scale_sigma = 1.0