I also use a Gracie, I was using the clamps also but then on day I forgot to clamp the sides ..........done just fine
from now on I just pin the sides and make sure the batten is also pin . use the pin perpindular(MS) and at the end next to the roller pin horizonal ...........this has help me.....................make sure you pull all the pins out before you advance the next roll....I learn some thing new every day.. watch a lot of videos and watch Lea Day videos she free motion on her regular machine but I use some of her methods and have learn a lot and adapted some of her style ..............................hope this helps
