diff --git a/tools/stress_delegator_multi_collators_evm.py b/tools/stress_delegator_multi_collators_evm.py
index ae92749..3660d80 100644
--- a/tools/stress_delegator_multi_collators_evm.py
+++ b/tools/stress_delegator_multi_collators_evm.py
@@ -188,15 +188,17 @@ def main():  # noqa: C901
     # Leave the delegators
     try:
         evm_receipt = delegator_leave_delegators(w3, eth_chain_id, kps[0]['kp'])
+        print('Leave delegators successfully')
         if evm_receipt['status'] != 1:
             print('Leave delegators failed')
             raise IOError('Leave delegators failed')
-    except ValueError:
+    except ValueError as e:
+        print(f'Leave delegators failed {e}')
         pass
 
     for i in range(10000):
         print('Setup delegators start {}'.format(i))
-        setup_delegators(substrate, w3, contract, eth_chain_id, kps, validators, collator_nums, args.number)
+        setup_delegators(substrate, w3, eth_chain_id, kps, validators, collator_nums, args.number)
 
         if not check_delegator_number(substrate, kps[0]['substrate'], args.number):
             print('Delegator number not found')
diff --git a/tools/stress_delegator_multi_collators_substrate.py b/tools/stress_delegator_multi_collators_substrate.py
index fd92fb9..739fe3e 100644
--- a/tools/stress_delegator_multi_collators_substrate.py
+++ b/tools/stress_delegator_multi_collators_substrate.py
@@ -105,6 +105,18 @@ def setup_delegators(substrate, kps, validators, number):
     if number == 1:
         return
     print('Wait for one session')
+    # [TODO] Let us skip this, only need to enable in Krest/Peaq docker env
+    # batch = ExtrinsicBatch(substrate, KP_GLOBAL_SUDO)
+    # batch.compose_sudo_call(
+    #     'ParachainStaking',
+    #     'force_new_round',
+    #     {}
+    # )
+    # receipt = batch.execute()
+    # if not receipt.is_success:
+    #     print('Force new round failed')
+    #     raise IOError('Force new round failed')
+
     wait_next_session(substrate, receipt.block_hash)
 
     # Delegate
@@ -117,6 +129,11 @@ def setup_delegators(substrate, kps, validators, number):
             validator,
             get_collator_stake(substrate, validator))
         print(f'Setup delegators for {validator} successfully, {idx} / {len(validators)}')
+        # [TODO] Let us skip this, only need to enable in Krest/Peaq docker env
+        # receipt = batch.execute()
+        # if not receipt.is_success:
+        #     print('Force new round failed')
+        #     raise IOError('Force new round failed')
         wait_next_session(substrate, receipt.block_hash)
 
 
@@ -158,6 +175,17 @@ def main():
         return
 
     print(f'Number of validators are {len(validators)}')
+    # [TODO] Let us skip this, only need to enable in Krest/Peaq docker env
+    # batch = ExtrinsicBatch(substrate, KP_GLOBAL_SUDO)
+    # batch.compose_sudo_call(
+    #     'ParachainStaking',
+    #     'force_new_round',
+    #     {}
+    # )
+    # receipt = batch.execute()
+    # if not receipt.is_success:
+    #     print('Force new round failed')
+    #     raise IOError('Force new round failed')
 
     kps = [Keypair.create_from_mnemonic('trumpet depth hidden success nominee twenty erode mixture pond bread easily cycle')]
     for i in range(10000):