diff --git a/xsnet/net.go b/xsnet/net.go
index 60ab5db..23a2c91 100644
--- a/xsnet/net.go
+++ b/xsnet/net.go
@@ -1319,7 +1319,11 @@ func (hc *Conn) WritePacket(b []byte, ctrlStatOp byte) (n int, err error) {
 	hc.wm.Write(b[0:payloadLen])
 	hmacOut = hc.wm.Sum(nil)[0:HMAC_CHK_SZ]
 
-	log.Printf("  (%04x> HMAC(o):%s\r\n", payloadLen, hex.EncodeToString(hmacOut))
+	//log.Printf("  (%08x> HMAC(o):%s\r\n", payloadLen, hex.EncodeToString(hmacOut))
+	// HACK: Bug #22: (xc) Need flow control so sender can't overwhelm rcvr with data.
+	if payloadLen > 8192 {
+		time.Sleep(time.Duration(10 * time.Millisecond)) // Let rcvr set this on setup?
+	}
 
 	var wb bytes.Buffer
 	// The StreamWriter acts like a pipe, forwarding whatever is