diff --git a/.gas-snapshot b/.gas-snapshot
index b20a5f7e6..e3a83024c 100644
--- a/.gas-snapshot
+++ b/.gas-snapshot
@@ -1,5 +1,6 @@
-GenericPoolOrderBookV3ArbOrderTakerTest:testGenericPoolMinimumOutput((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256,uint256,uint256) (runs: 5096, μ: 332052, ~: 330383)
-GenericPoolOrderBookV3ArbOrderTakerTest:testGenericPoolTakeOrdersSender((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256) (runs: 5096, μ: 266210, ~: 265260)
+GenericPoolOrderBookV3ArbOrderTakerInitTest:testGenericPoolOrderBookV3ArbOrderTakerInitInvalidInputs(bytes) (runs: 5096, μ: 112556, ~: 112571)
+GenericPoolOrderBookV3ArbOrderTakerSenderTest:testGenericPoolMinimumOutput((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256,uint256,uint256) (runs: 5096, μ: 332057, ~: 330383)
+GenericPoolOrderBookV3ArbOrderTakerSenderTest:testGenericPoolTakeOrdersSender((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256) (runs: 5096, μ: 266214, ~: 265260)
 GenericPoolOrderBookV3FlashBorrowerTest:testGenericPoolOrderBookV3FlashBorrowerMinimumOutput((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256,uint256,uint256) (runs: 5096, μ: 609059, ~: 605057)
 GenericPoolOrderBookV3FlashBorrowerTest:testGenericPoolOrderBookV3FlashBorrowerTakeOrdersSender((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256) (runs: 5096, μ: 522448, ~: 519675)
 LibOrderTest:testHashEqual((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[])) (runs: 5096, μ: 196882, ~: 195948)
@@ -86,5 +87,6 @@ OrderBookWithdrawTest:testWithdrawFullVault(address,uint256,uint256,uint256) (ru
 OrderBookWithdrawTest:testWithdrawMany((bool,address,address,uint256,uint248)[]) (runs: 5096, μ: 3169906, ~: 3156574)
 OrderBookWithdrawTest:testWithdrawPartialVault(address,uint256,uint256,uint256) (runs: 5096, μ: 49439, ~: 49439)
 OrderBookWithdrawTest:testWithdrawZero(address,address,uint256) (runs: 5096, μ: 12809, ~: 12809)
-RouteProcessorOrderBookV3ArbOrderTakerTest:testRouteProcessorMinimumOutput((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256,uint256,uint256) (runs: 5096, μ: 332202, ~: 330538)
-RouteProcessorOrderBookV3ArbOrderTakerTest:testRouteProcessorTakeOrdersSender((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256) (runs: 5096, μ: 266376, ~: 265424)
\ No newline at end of file
+RouteProcessorOrderBookV3ArbOrderTakerInitTest:testRouteProcessorOrderBookV3ArbOrderTakerInitInvalidInputs(bytes) (runs: 5096, μ: 135462, ~: 135478)
+RouteProcessorOrderBookV3ArbOrderTakerSenderTest:testRouteProcessorMinimumOutput((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256,uint256,uint256) (runs: 5096, μ: 332199, ~: 330538)
+RouteProcessorOrderBookV3ArbOrderTakerSenderTest:testRouteProcessorTakeOrdersSender((address,bool,(address,address,address),(address,uint8,uint256)[],(address,uint8,uint256)[]),uint256,uint256) (runs: 5096, μ: 266375, ~: 265424)
\ No newline at end of file
diff --git a/test/concrete/GenericPoolOrderBookV3ArbOrderTaker.init.t.sol b/test/concrete/GenericPoolOrderBookV3ArbOrderTaker.init.t.sol
index d7c3286b6..75de5d4b1 100644
--- a/test/concrete/GenericPoolOrderBookV3ArbOrderTaker.init.t.sol
+++ b/test/concrete/GenericPoolOrderBookV3ArbOrderTaker.init.t.sol
@@ -10,14 +10,17 @@ import {IParserV1} from "rain.interpreter/src/interface/IParserV1.sol";
 import {NonZeroBeforeArbInputs} from "src/abstract/OrderBookV3ArbOrderTaker.sol";
 
 contract GenericPoolOrderBookV3ArbOrderTakerInitTest is GenericPoolOrderBookV3ArbOrderTakerTest {
-    function testGenericPoolOrderBookV3ArbOrderTakerInitInvalidInputs() public {
+    function testGenericPoolOrderBookV3ArbOrderTakerInitInvalidInputs(bytes memory io) public {
+        vm.assume(io.length >= 2);
+        vm.assume(io.length % 2 == 0);
+        vm.assume(io[0] != 0);
         address testArb = Clones.clone(iImplementation);
         vm.mockCall(
             iDeployer,
             abi.encodeWithSelector(IExpressionDeployerV3.deployExpression2.selector),
-            abi.encode(address(0), address(0), address(0), "0100")
+            abi.encode(address(0), address(0), address(0), io)
         );
-        vm.expectRevert(abi.encodeWithSelector(NonZeroBeforeArbInputs.selector, 48));
+        vm.expectRevert(abi.encodeWithSelector(NonZeroBeforeArbInputs.selector, uint256(uint8(io[0]))));
         ICloneableV2(testArb).initialize(
             abi.encode(
                 OrderBookV3ArbOrderTakerConfigV1(
diff --git a/test/concrete/RouteProcessorOrderBookV3ArbOrderTaker.init.t.sol b/test/concrete/RouteProcessorOrderBookV3ArbOrderTaker.init.t.sol
index b38c06a50..125d8345e 100644
--- a/test/concrete/RouteProcessorOrderBookV3ArbOrderTaker.init.t.sol
+++ b/test/concrete/RouteProcessorOrderBookV3ArbOrderTaker.init.t.sol
@@ -10,14 +10,17 @@ import {EvaluableConfigV3, IExpressionDeployerV3} from "src/interface/unstable/I
 import {NonZeroBeforeArbInputs} from "src/abstract/OrderBookV3ArbOrderTaker.sol";
 
 contract RouteProcessorOrderBookV3ArbOrderTakerInitTest is RouteProcessorOrderBookV3ArbOrderTakerTest {
-    function testRouteProcessorOrderBookV3ArbOrderTakerInitInvalidInputs() public {
+    function testRouteProcessorOrderBookV3ArbOrderTakerInitInvalidInputs(bytes memory io) public {
+        vm.assume(io.length >= 2);
+        vm.assume(io.length % 2 == 0);
+        vm.assume(io[0] != 0);
         address testArb = Clones.clone(iImplementation);
         vm.mockCall(
             iDeployer,
             abi.encodeWithSelector(IExpressionDeployerV3.deployExpression2.selector),
-            abi.encode(address(0), address(0), address(0), "0100")
+            abi.encode(address(0), address(0), address(0), io)
         );
-        vm.expectRevert(abi.encodeWithSelector(NonZeroBeforeArbInputs.selector, 48));
+        vm.expectRevert(abi.encodeWithSelector(NonZeroBeforeArbInputs.selector, uint256(uint8(io[0]))));
         ICloneableV2(testArb).initialize(
             abi.encode(
                 OrderBookV3ArbOrderTakerConfigV1(