Originally Posted by
maviskw
I think that is backwards. If you tug a little on the binding, it will never be wavy. If you pull too much, the center bags a little. I did that once...........
Agree ..... though the way the original poster commented, I was not sure she really meant that the binding itself was wavy, but that the border had become wavy, which was why I made this suggestion.
In the same sense, it could be that she pulled the edge of the quilt taut against the binding. Thus stretching the quilt edge, which would then make the border and binding wavy.