HI ALL HAVING TROUBLE WITH FSL.WHEN IT SEWS OUT SOME OF THE THREADS DONT LOCK AND THERE IS HOLES IN THE DESIGNE OR THE EDGES DONT CATCH.WHAT AM I DOING WRONG..DO YOU HAVE TO PULL THE STABLEZIER TITE OR LEAVE IT LOSE..I AN FRUSTRAITED.I HOPE YOU CAN HELP...THANKS LUCY