diff --git a/benchmarks/simu/counter.go b/benchmarks/simu/counter.go
index 8b0ba180..25b7703e 100644
--- a/benchmarks/simu/counter.go
+++ b/benchmarks/simu/counter.go
@@ -49,7 +49,7 @@ func main() {
 		if i%1000 == 0 {
 			fmt.Println(i)
 		}
-		time.Sleep(time.Microsecond * 1)
+		time.Sleep(time.Microsecond * 250)
 	}
 
 	ws.Stop()
diff --git a/types/block.go b/types/block.go
index 752d6a56..e574f289 100644
--- a/types/block.go
+++ b/types/block.go
@@ -343,8 +343,12 @@ func (data *Data) StringIndented(indent string) string {
 	if data == nil {
 		return "nil-Data"
 	}
-	txStrings := make([]string, len(data.Txs))
+	txStrings := make([]string, MinInt(len(data.Txs), 21))
 	for i, tx := range data.Txs {
+		if i == 20 {
+			txStrings[i] = fmt.Sprintf("... (%v total)", len(data.Txs))
+			break
+		}
 		txStrings[i] = fmt.Sprintf("Tx:%v", tx)
 	}
 	return fmt.Sprintf(`Data{
diff --git a/types/part_set.go b/types/part_set.go
index fc082667..9ab557bd 100644
--- a/types/part_set.go
+++ b/types/part_set.go
@@ -49,10 +49,10 @@ func (part *Part) String() string {
 func (part *Part) StringIndented(indent string) string {
 	return fmt.Sprintf(`Part{
 %s  Proof: %v
-%s  Bytes: %X
+%s  Bytes: %X...
 %s}`,
 		indent, part.Proof.StringIndented(indent+"  "),
-		indent, part.Bytes,
+		indent, Fingerprint(part.Bytes),
 		indent)
 }
 
diff --git a/types/validator.go b/types/validator.go
index d7fdb3b9..f68f5892 100644
--- a/types/validator.go
+++ b/types/validator.go
@@ -53,7 +53,7 @@ func (v *Validator) String() string {
 	if v == nil {
 		return "nil-Validator"
 	}
-	return fmt.Sprintf("Validator{%X %v %v-%v-%v VP:%v A:%v}",
+	return fmt.Sprintf("Validator{%X %v %v VP:%v A:%v}",
 		v.Address,
 		v.PubKey,
 		v.LastCommitHeight,