diff --git a/px6_send.sh b/px6_send.sh
index 0b89b7d..a9c8fc2 100755
--- a/px6_send.sh
+++ b/px6_send.sh
@@ -6,7 +6,7 @@ FILE=$4
 PROCMAXTIME=60
 
 MAINPID=$$
-PGID=$(ps -o pgid= $MAINPID | grep -o [0-9]*)
+PGID=$(ps -o pgid= $MAINPID | grep -oe "[0-9]*")
 
 do_exit() {
 	kill -9 -$PGID
@@ -20,14 +20,12 @@ for i in $(seq 0 $(($PROCS-1))); do
 		while true; do
 			(
 				THISPID2=$BASHPID
-				# ( while kill -0 $MAINPID; do sleep 1; done; do_exit ) &
 				( sleep $PROCMAXTIME; kill -9 $THISPID2 >/dev/null 2>&1 ) &
-				# echo "starting $(($i+1)) / $PROCS"
-				( while true; do cat $FILE; done ) | nc $IP $PORT >/dev/null 2>&1
+				echo "starting $(($i+1)) / $PROCS"
+				( while kill -0 $THISPID2; do cat $FILE; done ) | nc $IP $PORT >/dev/null 2>&1
 			) >/dev/null 2>&1
 		done
 	) &
-	sleep 1
-	sleep $(echo "scale=2; $PROCMAXTIME/$PROCS" | bc)
+	sleep $(echo "scale=2; ($PROCMAXTIME/$PROCS) + 1" | bc)
 done
 while true; do sleep 9999999; done