diff --git a/chain/gen/gen.go b/chain/gen/gen.go
index 14581ded9..99ac2f109 100644
--- a/chain/gen/gen.go
+++ b/chain/gen/gen.go
@@ -558,8 +558,6 @@ func IsRoundWinner(ctx context.Context, ts *types.TipSet, round abi.ChainEpoch,
 		return nil, xerrors.Errorf("failed to compute VRF: %w", err)
 	}
 
-	// TODO: wire in real power
-	// TODO: is above TODO still applicable?
 	ep := &types.ElectionProof{VRFProof: vrfout}
 	j := ep.ComputeWinCount(mbi.MinerPower, mbi.NetworkPower)
 	ep.WinCount = j
diff --git a/chain/store/weight.go b/chain/store/weight.go
index ac51aeb45..ab663f700 100644
--- a/chain/store/weight.go
+++ b/chain/store/weight.go
@@ -21,11 +21,11 @@ func (cs *ChainStore) Weight(ctx context.Context, ts *types.TipSet) (types.BigIn
 	if ts == nil {
 		return types.NewInt(0), nil
 	}
-	// >>> w[r] <<< + wFunction(totalPowerAtTipset(ts)) * 2^8 + (wFunction(totalPowerAtTipset(ts)) * sum(ts.blocks.ElectionProof.WinCount) * wRatio_num * 2^8) / (e * wRatio_den)
+	// >>> w[r] <<< + wFunction(totalPowerAtTipset(ts)) * 2^8 + (wFunction(totalPowerAtTipset(ts)) * sum(ts.blocks[].ElectionProof.WinCount) * wRatio_num * 2^8) / (e * wRatio_den)
 
 	var out = new(big.Int).Set(ts.Blocks()[0].ParentWeight.Int)
 
-	// >>> wFunction(totalPowerAtTipset(ts)) * 2^8 <<< + (wFunction(totalPowerAtTipset(ts)) * sum(ts.blocks.ElectionProof.WinCount) * wRatio_num * 2^8) / (e * wRatio_den)
+	// >>> wFunction(totalPowerAtTipset(ts)) * 2^8 <<< + (wFunction(totalPowerAtTipset(ts)) * sum(ts.blocks[].ElectionProof.WinCount) * wRatio_num * 2^8) / (e * wRatio_den)
 
 	tpow := big2.Zero()
 	{
@@ -57,7 +57,7 @@ func (cs *ChainStore) Weight(ctx context.Context, ts *types.TipSet) (types.BigIn
 
 	out.Add(out, big.NewInt(log2P<<8))
 
-	// (wFunction(totalPowerAtTipset(ts)) * sum(ts.blocks.ElectionProof.WinCount) * wRatio_num * 2^8) / (e * wRatio_den)
+	// (wFunction(totalPowerAtTipset(ts)) * sum(ts.blocks[].ElectionProof.WinCount) * wRatio_num * 2^8) / (e * wRatio_den)
 
 	totalJ := uint64(0)
 	for _, b := range ts.Blocks() {
diff --git a/chain/types/bigint_test.go b/chain/types/bigint_test.go
index ea98f672d..d337bfc85 100644
--- a/chain/types/bigint_test.go
+++ b/chain/types/bigint_test.go
@@ -82,7 +82,7 @@ func TestSizeStrUnitsSymmetry(t *testing.T) {
 	s := rand.NewSource(time.Now().UnixNano())
 	r := rand.New(s)
 
-	for i := 0; i < 1000; i++ {
+	for i := 0; i < 10000; i++ {
 		n := r.Uint64()
 		l := strings.ReplaceAll(units.BytesSize(float64(n)), " ", "")
 		r := strings.ReplaceAll(SizeStr(NewInt(n)), " ", "")