diff --git a/contracts/helpers/MockBancorNetworkV3.sol b/contracts/helpers/MockBancorNetworkV3.sol
index f4fafcd6..6e3474dd 100755
--- a/contracts/helpers/MockBancorNetworkV3.sol
+++ b/contracts/helpers/MockBancorNetworkV3.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: SEE LICENSE IN LICENSE
 pragma solidity 0.8.19;
 
 import { Token } from "../token/Token.sol";
diff --git a/contracts/helpers/TestBNT.sol b/contracts/helpers/TestBNT.sol
index 8722b981..14172ff6 100644
--- a/contracts/helpers/TestBNT.sol
+++ b/contracts/helpers/TestBNT.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: SEE LICENSE IN LICENSE
 pragma solidity 0.8.19;
 
 import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
diff --git a/contracts/helpers/TestReenterCarbonPOL.sol b/contracts/helpers/TestReenterCarbonPOL.sol
index 3738d87c..195036ee 100644
--- a/contracts/helpers/TestReenterCarbonPOL.sol
+++ b/contracts/helpers/TestReenterCarbonPOL.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: SEE LICENSE IN LICENSE
 pragma solidity 0.8.19;
 
 import { ICarbonPOL } from "../pol/interfaces/ICarbonPOL.sol";
diff --git a/contracts/helpers/TestReenterCarbonVortex.sol b/contracts/helpers/TestReenterCarbonVortex.sol
index 500e5218..bf753870 100644
--- a/contracts/helpers/TestReenterCarbonVortex.sol
+++ b/contracts/helpers/TestReenterCarbonVortex.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: SEE LICENSE IN LICENSE
 pragma solidity 0.8.19;
 
 import { ICarbonVortex } from "../vortex/interfaces/ICarbonVortex.sol";
diff --git a/contracts/helpers/TestReentrantToken.sol b/contracts/helpers/TestReentrantToken.sol
index b8665c41..86210ee3 100644
--- a/contracts/helpers/TestReentrantToken.sol
+++ b/contracts/helpers/TestReentrantToken.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: SEE LICENSE IN LICENSE
 pragma solidity 0.8.19;
 
 import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
@@ -42,6 +42,7 @@ contract TestReentrantToken is ERC20 {
     function transferFrom(address from, address to, uint256 amount) public override(ERC20) returns (bool) {
         bool success = super.transferFrom(from, to, amount);
 
+        // choose which carbonController function to reenter based on _reenterFunctionIndex
         if (_reenterFunctionIndex == uint8(ReenterFunctions.CREATE_PAIR)) {
             _reenterCreatePair();
         } else if (_reenterFunctionIndex == uint8(ReenterFunctions.CREATE_STRATEGY)) {