diff --git a/besu/src/main/java/org/hyperledger/besu/cli/subcommands/operator/TrieLogSubCommand.java b/besu/src/main/java/org/hyperledger/besu/cli/subcommands/operator/TrieLogSubCommand.java
index f82e4487bc5..e14e16e8521 100644
--- a/besu/src/main/java/org/hyperledger/besu/cli/subcommands/operator/TrieLogSubCommand.java
+++ b/besu/src/main/java/org/hyperledger/besu/cli/subcommands/operator/TrieLogSubCommand.java
@@ -127,13 +127,14 @@ public void run() {
         out.println("Subcommand only works with Bonsai");
       }
 
-      //      KeyValueStorage trieLogStorage =
+      //            KeyValueStorage trieLogStorage =
+      //
       // besuController.getStorageProvider().getStorageBySegmentIdentifier(KeyValueSegmentIdentifier.TRIE_LOG_STORAGE);
-      //      Optional<byte[]> bytes =
-      // trieLogStorage.get(Bytes.fromHexString(targetBlockHash.toString()).toArrayUnsafe());
-      //      LOG.atInfo().setMessage("result: {}")
-      //              .addArgument(HexFormat.of().formatHex(bytes.orElse(new byte[0])))
-      //              .log();
+      //            Optional<byte[]> bytes =
+      //       trieLogStorage.get(Bytes.fromHexString(targetBlockHash.toString()).toArrayUnsafe());
+      //            LOG.atInfo().setMessage("result: {}")
+      //                    .addArgument(HexFormat.of().formatHex(bytes.orElse(new byte[0])))
+      //                    .log();
     } catch (final Exception e) {
       LOG.error("TODO SLD", e);
       spec.commandLine().usage(System.out);
@@ -415,7 +416,7 @@ public void run() {
                     Hash hash = Hash.wrap(Bytes32.wrap(hashAsBytes));
 
                     final Optional<BlockHeader> header = blockchain.getBlockHeader(hash);
-                    if (header.isEmpty()) {
+                    if (header.isEmpty()) { // TODO SLD what if we're still producing this block?
                       // Orphaned trie logs are neither in the canonical blockchain nor forks.
                       // Likely created during block production
                       recordResult(trieLogStorage.tryDelete(hashAsBytes), prunedCount, hash);
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/BonsaiWorldStateProvider.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/BonsaiWorldStateProvider.java
index 299b826369c..0cc9162ae91 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/BonsaiWorldStateProvider.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/BonsaiWorldStateProvider.java
@@ -153,6 +153,12 @@ public boolean isWorldStateAvailable(final Hash rootHash, final Hash blockHash)
         || worldStateStorage.isWorldStateAvailable(rootHash, blockHash);
   }
 
+  // TODO SLD protection against pruned trie logs when rolling back/forward etc so we're not relying
+  // on 512 max layers config.
+
+  // TODO SLD during reorg, prune trie logs, then another reorg -> roll forward - could be a problem
+  // with roll forward?
+
   @Override
   public Optional<MutableWorldState> getMutable(
       final BlockHeader blockHeader, final boolean shouldPersistState) {
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/trielog/AbstractTrieLogManager.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/trielog/AbstractTrieLogManager.java
index 43b3d465df0..6db2d0cbba5 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/trielog/AbstractTrieLogManager.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/trielog/AbstractTrieLogManager.java
@@ -154,6 +154,7 @@ public long getMaxLayersToLoad() {
 
   @Override
   public Optional<TrieLog> getTrieLogLayer(final Hash blockHash) {
+    // TODO SLD check CACHE1 first?
     return rootWorldStateStorage.getTrieLog(blockHash).map(trieLogFactory::deserialize);
   }
 
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/worldview/BonsaiWorldState.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/worldview/BonsaiWorldState.java
index ed81c90f439..4015caf5399 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/worldview/BonsaiWorldState.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/bonsai/worldview/BonsaiWorldState.java
@@ -393,6 +393,8 @@ public void persist(final BlockHeader blockHeader) {
         verifyWorldStateRoot(newWorldStateRootHash, blockHeader);
         saveTrieLog =
             () -> {
+              // TODO SLD if isFrozen pushTo CACHE1 else persist ? To avoid persisting when
+              // producing block (cache to keep optimisation between build and newPayload import)
               trieLogManager.saveTrieLog(localCopy, newWorldStateRootHash, blockHeader, this);
               // not save a frozen state in the cache
               if (!isFrozen) {