Okay, so I have finished my first ever block (not counting what I am working on in a class). I want to make this into a quilted wall hanging. My question is... Do I sew through the middle only or is the backing quilted too? I am using a varigated thread so Iam not sure if it will look right on the back if you can see the stitching? Which is why I was thinking I should just go throught the middle (felted batting???) and the block itself. TIA for you help.