5" is probably not that unusual for 106" wide back. I like Kim Bruner's methods of squaring up the wideback on your LA belly bar, makes all that fabric manageable. If someone can help you pull it a bit into square (like I learned in 7th grade home ec) you might it it closer. I always ask for the wideback to be torn because its always off square. Hancocks always does it anyway, Joanne's doesn't unless I ask and even then you sometimes have to explain that one fold is cut and then carefully torn instead of just a yank.