diff --git a/onchain/README.md b/onchain/README.md
index 9375d45..d9daabd 100644
--- a/onchain/README.md
+++ b/onchain/README.md
@@ -61,7 +61,7 @@ $ anvil
 forge clean
 forge cache clean
 source .env
-forge script script/Deploy.sol:SepoliaScript --slow --broadcast --verify --rpc-url ${SEPOLIA_RPC_URL}
+forge script script/Deploy.sol:BaseXDeploy --slow --broadcast --verify --rpc-url ${X_RPC_URL}
 ```
 
 if verification fails:
@@ -112,27 +112,21 @@ address: 0xCc7467616bBDB574D04C7e9d2B0982c59F33D43c
 
 ### Harberg
 
-address: 0x00d5690044cf91fb3fc674c780697d511702f729
+address: 0x54838DC097E7fC4736B801bF1c1FCf1597348265
 
 ### Stake
 
-address: 0x275403401f9c6f4659b6ffb6ab01798e1de9a912
+address: 0xd7728173F73C748944d29EA77b56f09b8FEc8F33
 
 ### LP
 
-address: 0x0360c20822a7298e9061248b39fe475a78d4de48
+address: 0x00E4da809989f40F5D1B31bE6202A5e512db4212
 
 
 ## References
 
 open features:
 - reduce snatch collision
-- profit for staking position
-- tax paid for staking position
-- deployment on L2
 
 todos:
-- liquidation bot
 - write unit test for capital exit function
-- put ownerOnly restriction on recenter, remove it later. gives more control to the team initally, but keeps it decentralized
-
diff --git a/onchain/script/BaseDeploy.sol b/onchain/script/BaseDeploy.sol
new file mode 100644
index 0000000..e83e700
--- /dev/null
+++ b/onchain/script/BaseDeploy.sol
@@ -0,0 +1,15 @@
+pragma solidity ^0.8.19;
+
+import {DeployScript} from "./DeployScript.sol";
+
+contract BaseDeploy is DeployScript {
+
+    function setUp() public {
+        // Sepolia data
+        feeDest = 0x0000000000000000000000000000000000000000;
+        weth = 0x4200000000000000000000000000000000000006;
+        v3Factory = 0x33128a8fC17869897dcE68Ed026d694621f6FDfD;
+        // comment out if new deployment
+        // twabc = 0xFCFa3b066981027516121bd27a9B1cBb9C00c5Fd;
+    }
+}
diff --git a/onchain/script/BaseSepoliaDeploy.sol b/onchain/script/BaseSepoliaDeploy.sol
new file mode 100644
index 0000000..3a96a41
--- /dev/null
+++ b/onchain/script/BaseSepoliaDeploy.sol
@@ -0,0 +1,15 @@
+pragma solidity ^0.8.19;
+
+import {DeployScript} from "./DeployScript.sol";
+
+contract BaseSepoliaDeploy is DeployScript {
+
+    function setUp() public {
+        // Base Sepolia data
+        feeDest = 0xf6a3eef9088A255c32b6aD2025f83E57291D9011;
+        weth = 0x4200000000000000000000000000000000000006;
+        v3Factory = 0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24;
+        // comment out if new deployment
+        twabc = 0xFCFa3b066981027516121bd27a9B1cBb9C00c5Fd;
+    }
+}
diff --git a/onchain/script/Deploy.sol b/onchain/script/DeployScript.sol
similarity index 69%
rename from onchain/script/Deploy.sol
rename to onchain/script/DeployScript.sol
index b302843..203da21 100644
--- a/onchain/script/Deploy.sol
+++ b/onchain/script/DeployScript.sol
@@ -8,22 +8,14 @@ import "../src/Harberg.sol";
 import "../src/Stake.sol";
 import {LiquidityManager} from "../src/LiquidityManager.sol";
 
-// Base Sepolia data
-address constant FEE_DEST = 0xf6a3eef9088A255c32b6aD2025f83E57291D9011;
-address constant WETH = 0x4200000000000000000000000000000000000006;
-address constant V3_FACTORY = 0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24;
-address constant TWABC = 0xFCFa3b066981027516121bd27a9B1cBb9C00c5Fd; 
-
-// Sepolia data
-// address constant WETH = 0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14; //Sepolia
-// address constant V3_FACTORY = 0x0227628f3F023bb0B980b67D528571c95c6DaC1c; //Sepolia
-// address constant TWABC = 0x64ddA11815B883C589AFeD914666ef2D63C8C338; //new TwabController(60 * 60 * 24, uint32(block.timestamp));
 uint24 constant FEE = uint24(10_000);
 
-contract BaseSepoliaScript is Script {
+contract DeployScript is Script {
     bool token0isWeth;
-
-    function setUp() public {}
+    address feeDest;
+    address weth;
+    address v3Factory;
+    address twabc;
 
 
     function sqrt(uint256 y) internal pure returns (uint256 z) {
@@ -66,19 +58,23 @@ contract BaseSepoliaScript is Script {
         address sender = vm.addr(privateKey);
         console.log(sender);
 
-        TwabController tc = TwabController(TWABC);
-        // in case you want to deploy an new TwabController
-        //TwabController tc = new TwabController(60 * 60, uint32(block.timestamp));
+        TwabController tc;
+        if (twabc == address(0)) {
+            tc = TwabController(twabc);    
+        } else {
+            // in case you want to deploy an new TwabController
+            tc = new TwabController(60 * 60, uint32(block.timestamp));
+        }
         Harberg harb = new Harberg("Harbergerger Tax", "HARB", tc);
-        token0isWeth = address(WETH) < address(harb);
+        token0isWeth = address(weth) < address(harb);
         Stake stake = new Stake(address(harb));
         harb.setStakingPool(address(stake));
-        IUniswapV3Factory factory = IUniswapV3Factory(V3_FACTORY);
-        address liquidityPool = factory.createPool(WETH, address(harb), FEE);
+        IUniswapV3Factory factory = IUniswapV3Factory(v3Factory);
+        address liquidityPool = factory.createPool(weth, address(harb), FEE);
         initializePoolFor1Cent(liquidityPool);
         harb.setLiquidityPool(liquidityPool);
-        LiquidityManager liquidityManager = new LiquidityManager(V3_FACTORY, WETH, address(harb));
-        liquidityManager.setFeeDestination(FEE_DEST);
+        LiquidityManager liquidityManager = new LiquidityManager(v3Factory, weth, address(harb));
+        liquidityManager.setFeeDestination(feeDest);
         // note: this delayed initialization is not a security issue.
         harb.setLiquidityManager(address(liquidityManager));
         (bool sent, ) = address(liquidityManager).call{value: 0.1 ether}("");
diff --git a/onchain/src/Stake.sol b/onchain/src/Stake.sol
index 2414b93..e6fe232 100644
--- a/onchain/src/Stake.sol
+++ b/onchain/src/Stake.sol
@@ -89,6 +89,8 @@ contract Stake {
 
     /// @dev Internal function to calculate and pay taxes for a position, adjusting shares and handling position liquidation if necessary.
     function _payTax(uint256 positionId, StakingPosition storage pos, uint256 taxFloorDuration) private {
+        // TODO: check if position exits
+        require(pos.share > 0, "position not found");
         // ihet = Implied Holding Expiry Timestamp
         uint256 ihet = (block.timestamp - pos.creationTime < taxFloorDuration)
             ? pos.creationTime + taxFloorDuration
@@ -101,6 +103,7 @@ contract Stake {
             taxAmountDue = assetsBefore;
         }
         if (assetsBefore - taxAmountDue > 0) {
+            require(taxAmountDue > 10**18, "taxAmountDue not worth it");
             // if something left over, update storage
             uint256 shareAfterTax = assetsToShares(assetsBefore - taxAmountDue);
             outstandingStake -= pos.share - shareAfterTax;