Long arm quilting a GFG
I'm very new to long arm quilting. I have my first completed GFG that I want to LA. I watched a video where Jamie Wallen added a layer of muslin behind the top to avoid bearding between the open, hand stitched seams. Would you do this, or I thought about using featherweight iron on interfacing? I don't want to add unnecessary weight with the muslin, or possibly adding stiffness with the interfacing, but it needs to be able to hold up to use and laundering in a regular washing machine.
I am not going to hand quilt it. I made it for the fun of having a traveling project. That does not require me to learn to hand quilt.
Thank you for any help or insights.