diff --git a/package-lock.json b/package-lock.json
index 19a0c9e88..dffd5be21 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@uniswap/smart-order-router",
-  "version": "4.7.1",
+  "version": "4.7.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@uniswap/smart-order-router",
-      "version": "4.7.1",
+      "version": "4.7.2",
       "license": "GPL",
       "dependencies": {
         "@eth-optimism/sdk": "^3.2.2",
diff --git a/package.json b/package.json
index f629f0afc..46b4a3094 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@uniswap/smart-order-router",
-  "version": "4.7.1",
+  "version": "4.7.2",
   "description": "Uniswap Smart Order Router",
   "main": "build/main/index.js",
   "typings": "build/main/index.d.ts",
diff --git a/src/routers/alpha-router/alpha-router.ts b/src/routers/alpha-router/alpha-router.ts
index f12702d0d..b798c62be 100644
--- a/src/routers/alpha-router/alpha-router.ts
+++ b/src/routers/alpha-router/alpha-router.ts
@@ -2455,7 +2455,12 @@ export class AlphaRouter
     );
 
     if (bestSwapRoute) {
-      this.emitPoolSelectionMetrics(bestSwapRoute, allCandidatePools);
+      this.emitPoolSelectionMetrics(
+        bestSwapRoute,
+        allCandidatePools,
+        currencyIn,
+        currencyOut
+      );
     }
 
     return bestSwapRoute;
@@ -2722,7 +2727,9 @@ export class AlphaRouter
       routes: RouteWithValidQuote[];
       estimatedGasUsed: BigNumber;
     },
-    allPoolsBySelection: CandidatePoolsBySelectionCriteria[]
+    allPoolsBySelection: CandidatePoolsBySelectionCriteria[],
+    currencyIn: Currency,
+    currencyOut: Currency
   ) {
     const poolAddressesUsed = new Set<string>();
     const { routes: routeAmounts } = swapRouteRaw;
@@ -2753,10 +2760,14 @@ export class AlphaRouter
       );
     }
 
+    let hasV4Route = false;
     let hasV3Route = false;
     let hasV2Route = false;
     let hasMixedRoute = false;
     for (const routeAmount of routeAmounts) {
+      if (routeAmount.protocol === Protocol.V4) {
+        hasV4Route = true;
+      }
       if (routeAmount.protocol === Protocol.V3) {
         hasV3Route = true;
       }
@@ -2768,40 +2779,62 @@ export class AlphaRouter
       }
     }
 
-    if (hasMixedRoute && (hasV3Route || hasV2Route)) {
-      if (hasV3Route && hasV2Route) {
+    if (hasMixedRoute && (hasV4Route || hasV3Route || hasV2Route)) {
+      let metricsPrefix = 'Mixed';
+
+      if (hasV4Route) {
+        metricsPrefix += 'AndV4';
+      }
+
+      if (hasV3Route) {
+        metricsPrefix += 'AndV3';
+      }
+
+      if (hasV2Route) {
+        metricsPrefix += 'AndV2';
+      }
+
+      metric.putMetric(`${metricsPrefix}SplitRoute`, 1, MetricLoggerUnit.Count);
+      metric.putMetric(
+        `${metricsPrefix}SplitRouteForChain${this.chainId}`,
+        1,
+        MetricLoggerUnit.Count
+      );
+
+      if (hasV4Route && (currencyIn.isNative || currencyOut.isNative)) {
+        // Keep track of this edge case https://linear.app/uniswap/issue/ROUTE-303/tech-debt-split-route-can-have-different-ethweth-input-or-output#comment-bba53758
         metric.putMetric(
-          `MixedAndV3AndV2SplitRoute`,
+          `${metricsPrefix}SplitRouteWithNativeToken`,
           1,
           MetricLoggerUnit.Count
         );
         metric.putMetric(
-          `MixedAndV3AndV2SplitRouteForChain${this.chainId}`,
+          `${metricsPrefix}SplitRouteWithNativeTokenForChain${this.chainId}`,
           1,
           MetricLoggerUnit.Count
         );
-      } else if (hasV3Route) {
-        metric.putMetric(`MixedAndV3SplitRoute`, 1, MetricLoggerUnit.Count);
+      }
+    } else if (hasV4Route && hasV3Route && hasV2Route) {
+      metric.putMetric(`V4AndV3AndV2SplitRoute`, 1, MetricLoggerUnit.Count);
+      metric.putMetric(
+        `V4AndV3AndV2SplitRouteForChain${this.chainId}`,
+        1,
+        MetricLoggerUnit.Count
+      );
+
+      if (currencyIn.isNative || currencyOut.isNative) {
+        // Keep track of this edge case https://linear.app/uniswap/issue/ROUTE-303/tech-debt-split-route-can-have-different-ethweth-input-or-output#comment-bba53758
         metric.putMetric(
-          `MixedAndV3SplitRouteForChain${this.chainId}`,
+          `V4AndV3AndV2SplitRouteWithNativeToken`,
           1,
           MetricLoggerUnit.Count
         );
-      } else if (hasV2Route) {
-        metric.putMetric(`MixedAndV2SplitRoute`, 1, MetricLoggerUnit.Count);
         metric.putMetric(
-          `MixedAndV2SplitRouteForChain${this.chainId}`,
+          `V4AndV3AndV2SplitRouteWithNativeTokenForChain${this.chainId}`,
           1,
           MetricLoggerUnit.Count
         );
       }
-    } else if (hasV3Route && hasV2Route) {
-      metric.putMetric(`V3AndV2SplitRoute`, 1, MetricLoggerUnit.Count);
-      metric.putMetric(
-        `V3AndV2SplitRouteForChain${this.chainId}`,
-        1,
-        MetricLoggerUnit.Count
-      );
     } else if (hasMixedRoute) {
       if (routeAmounts.length > 1) {
         metric.putMetric(`MixedSplitRoute`, 1, MetricLoggerUnit.Count);
@@ -2818,6 +2851,15 @@ export class AlphaRouter
           MetricLoggerUnit.Count
         );
       }
+    } else if (hasV4Route) {
+      if (routeAmounts.length > 1) {
+        metric.putMetric(`V4SplitRoute`, 1, MetricLoggerUnit.Count);
+        metric.putMetric(
+          `V4SplitRouteForChain${this.chainId}`,
+          1,
+          MetricLoggerUnit.Count
+        );
+      }
     } else if (hasV3Route) {
       if (routeAmounts.length > 1) {
         metric.putMetric(`V3SplitRoute`, 1, MetricLoggerUnit.Count);
diff --git a/src/util/routes.ts b/src/util/routes.ts
index bbe7e628f..6884230b0 100644
--- a/src/util/routes.ts
+++ b/src/util/routes.ts
@@ -1,4 +1,4 @@
-import { ADDRESS_ZERO, Protocol } from '@uniswap/router-sdk';
+import { Protocol } from '@uniswap/router-sdk';
 import { Currency, Percent } from '@uniswap/sdk-core';
 import { Pair } from '@uniswap/v2-sdk';
 import { Pool as V3Pool } from '@uniswap/v3-sdk';
@@ -50,8 +50,8 @@ export const poolToString = (pool: TPool): string => {
       pool.token0,
       pool.token1,
       pool.fee,
-      0,
-      ADDRESS_ZERO
+      pool.tickSpacing,
+      pool.hooks
     )}]`;
   } else if (pool instanceof V3Pool) {
     return ` -- ${pool.fee / 10000}% [${V3Pool.getAddress(
@@ -95,8 +95,8 @@ export const routeToString = (route: SupportedRoutes): string => {
         pool.token0,
         pool.token1,
         pool.fee,
-        0,
-        ADDRESS_ZERO
+        pool.tickSpacing,
+        pool.hooks
       )}]`;
     } else {
       throw new Error(`Unsupported pool ${JSON.stringify(pool)}`);
@@ -131,7 +131,7 @@ export const routeAmountsToString = (
     const percent = new Percent(portion.numerator, portion.denominator);
     /// @dev special case for MIXED routes we want to show user friendly V2+V3 instead
     return `[${
-      protocol == Protocol.MIXED ? 'V2 + V3' : protocol
+      protocol == Protocol.MIXED ? 'V2 + V3 + V4' : protocol
     }] ${percent.toFixed(2)}% = ${routeToString(route)}`;
   });