diff --git a/yarn-project/ethereum/src/l1_tx_utils.ts b/yarn-project/ethereum/src/l1_tx_utils.ts
index 5f5dbf5624a..7bf40875dd3 100644
--- a/yarn-project/ethereum/src/l1_tx_utils.ts
+++ b/yarn-project/ethereum/src/l1_tx_utils.ts
@@ -574,9 +574,9 @@ export class L1TxUtils {
 
   public async simulateGasUsed(
     request: L1TxRequest,
-    _gasConfig?: L1TxUtilsConfig,
     blockOverrides: BlockOverrides<bigint, number> = {},
     stateOverrides: StateOverride = [],
+    _gasConfig?: L1TxUtilsConfig,
   ): Promise<bigint> {
     const gasConfig = { ...this.config, ..._gasConfig };
     const gasPrice = await this.getGasPrice(gasConfig, false);
diff --git a/yarn-project/sequencer-client/src/publisher/l1-publisher.ts b/yarn-project/sequencer-client/src/publisher/l1-publisher.ts
index 8a751fa9ddb..922c12cd70d 100644
--- a/yarn-project/sequencer-client/src/publisher/l1-publisher.ts
+++ b/yarn-project/sequencer-client/src/publisher/l1-publisher.ts
@@ -1065,9 +1065,8 @@ export class L1Publisher {
           to: this.rollupContract.address,
           data,
         },
-        undefined,
         {
-          time: timestamp,
+          time: timestamp + 1n,
         },
         [
           {
@@ -1096,7 +1095,6 @@ export class L1Publisher {
         {
           ...opts,
           gasLimit: simulationResult + blobEvaluationGas,
-          gasLimitBufferPercentage: 100,
         },
         {
           blobs: encodedData.blobs.map(b => b.dataWithZeros),
@@ -1139,9 +1137,8 @@ export class L1Publisher {
           to: this.rollupContract.address,
           data,
         },
-        undefined,
         {
-          time: timestamp,
+          time: timestamp + 1n,
         },
         [
           {
@@ -1170,7 +1167,6 @@ export class L1Publisher {
         {
           ...opts,
           gasLimit: simulationResult + blobEvaluationGas,
-          gasLimitBufferPercentage: 100,
         },
         {
           blobs: encodedData.blobs.map(b => b.dataWithZeros),