Sorry, I missed your post earlier. I do a ton of quilting around embroidery and applique. I machine baste the sides then use pins around the areas I'm working on and remove them as I finish the area. I float my quilts, so I also have pvc clamps to hold the bottom of my sandwich firm on the roller it's draping. However, it sounds like your not floating the quilt. Sorry Jim, I never heard of using safety pins on our longarms, not to say it wouldn't work. I would think small safety pins would roll fine. Amy (APQS educator) suggests using the flower pins, they are very flexible but be careful of getting stabbed by them.