diff --git a/nano/lib/rep_weights.cpp b/nano/lib/rep_weights.cpp
index 24167ae7..7a011c2d 100644
--- a/nano/lib/rep_weights.cpp
+++ b/nano/lib/rep_weights.cpp
@@ -1,11 +1,27 @@
 #include <nano/lib/rep_weights.hpp>
 #include <nano/secure/blockstore.hpp>
 
-void nano::rep_weights::representation_add (nano::account const & source_rep, nano::uint128_t const & amount_a)
+void nano::rep_weights::representation_add (nano::account const & source_rep_a, nano::uint128_t const & amount_a)
 {
 	nano::lock_guard<std::mutex> guard (mutex);
-	auto source_previous (get (source_rep));
-	put (source_rep, source_previous + amount_a);
+	auto source_previous (get (source_rep_a));
+	put (source_rep_a, source_previous + amount_a);
+}
+
+void nano::rep_weights::representation_add_dual (nano::account const & source_rep_1, nano::uint128_t const & amount_1, nano::account const & source_rep_2, nano::uint128_t const & amount_2)
+{
+	if (source_rep_1 != source_rep_2)
+	{
+		nano::lock_guard<std::mutex> guard (mutex);
+		auto source_previous_1 (get (source_rep_1));
+		put (source_rep_1, source_previous_1 + amount_1);
+		auto source_previous_2 (get (source_rep_2));
+		put (source_rep_2, source_previous_2 + amount_2);
+	}
+	else
+	{
+		representation_add (source_rep_1, amount_1 + amount_2);
+	}
 }
 
 void nano::rep_weights::representation_put (nano::account const & account_a, nano::uint128_union const & representation_a)
diff --git a/nano/lib/rep_weights.hpp b/nano/lib/rep_weights.hpp
index 818c5f4e..73e5753d 100644
--- a/nano/lib/rep_weights.hpp
+++ b/nano/lib/rep_weights.hpp
@@ -15,7 +15,8 @@ class transaction;
 class rep_weights
 {
 public:
-	void representation_add (nano::account const & source_a, nano::uint128_t const & amount_a);
+	void representation_add (nano::account const & source_rep_a, nano::uint128_t const & amount_a);
+	void representation_add_dual (nano::account const & source_rep_1, nano::uint128_t const & amount_1, nano::account const & source_rep_2, nano::uint128_t const & amount_2);
 	nano::uint128_t representation_get (nano::account const & account_a);
 	void representation_put (nano::account const & account_a, nano::uint128_union const & representation_a);
 	std::unordered_map<nano::account, nano::uint128_t> get_rep_amounts ();
diff --git a/nano/secure/ledger.cpp b/nano/secure/ledger.cpp
index da80730b..344acda3 100644
--- a/nano/secure/ledger.cpp
+++ b/nano/secure/ledger.cpp
@@ -94,8 +94,7 @@ public:
 		auto block = ledger.store.block_get (transaction, rep_block);
 		release_assert (block != nullptr);
 		auto representative = block->representative ();
-		ledger.cache.rep_weights.representation_add (block_a.representative (), 0 - balance);
-		ledger.cache.rep_weights.representation_add (representative, balance);
+		ledger.cache.rep_weights.representation_add_dual (block_a.representative (), 0 - balance, representative, balance);
 		ledger.store.block_del (transaction, hash);
 		nano::account_info new_info (block_a.hashables.previous, representative, info.open_block, info.balance, nano::seconds_since_epoch (), info.block_count - 1, nano::epoch::epoch_0);
 		ledger.change_latest (transaction, account, info, new_info);
@@ -114,16 +113,19 @@ public:
 		}
 		auto balance (ledger.balance (transaction, block_a.hashables.previous));
 		auto is_send (block_a.hashables.balance < balance);
-		// Add in amount delta
-		ledger.cache.rep_weights.representation_add (block_a.representative (), 0 - block_a.hashables.balance.number ());
 		nano::account representative{ 0 };
 		if (!rep_block_hash.is_zero ())
 		{
-			// Move existing representation
+			// Move existing representation & add in amount delta
 			auto block (ledger.store.block_get (transaction, rep_block_hash));
 			debug_assert (block != nullptr);
 			representative = block->representative ();
-			ledger.cache.rep_weights.representation_add (representative, balance);
+			ledger.cache.rep_weights.representation_add_dual (representative, balance, block_a.representative (), 0 - block_a.hashables.balance.number ());
+		}
+		else
+		{
+			// Add in amount delta only
+			ledger.cache.rep_weights.representation_add (block_a.representative (), 0 - block_a.hashables.balance.number ());
 		}
 
 		nano::account_info info;
@@ -347,11 +349,14 @@ void ledger_processor::state_block_impl (nano::state_block & block_a)
 
 						if (!info.head.is_zero ())
 						{
-							// Move existing representation
-							ledger.cache.rep_weights.representation_add (info.representative, 0 - info.balance.number ());
+							// Move existing representation & add in amount delta
+							ledger.cache.rep_weights.representation_add_dual (info.representative, 0 - info.balance.number (), block_a.representative (), block_a.hashables.balance.number ());
+						}
+						else
+						{
+							// Add in amount delta only
+							ledger.cache.rep_weights.representation_add (block_a.representative (), block_a.hashables.balance.number ());
 						}
-						// Add in amount delta
-						ledger.cache.rep_weights.representation_add (block_a.representative (), block_a.hashables.balance.number ());
 
 						if (is_send)
 						{
@@ -506,8 +511,7 @@ void ledger_processor::change_block (nano::change_block & block_a)
 							block_a.sideband_set (nano::block_sideband (account, 0, info.balance, info.block_count + 1, nano::seconds_since_epoch (), block_details, nano::epoch::epoch_0 /* unused */));
 							ledger.store.block_put (transaction, hash, block_a);
 							auto balance (ledger.balance (transaction, block_a.hashables.previous));
-							ledger.cache.rep_weights.representation_add (block_a.representative (), balance);
-							ledger.cache.rep_weights.representation_add (info.representative, 0 - balance);
+							ledger.cache.rep_weights.representation_add_dual (block_a.representative (), balance, info.representative, 0 - balance);
 							nano::account_info new_info (hash, block_a.representative (), info.open_block, info.balance, nano::seconds_since_epoch (), info.block_count + 1, nano::epoch::epoch_0);
 							ledger.change_latest (transaction, account, info, new_info);
 							ledger.store.frontier_del (transaction, block_a.hashables.previous);