Thank you all for your suggestions. I finally got them secure. I did trim a bit more of the excess fabric and batting and then for good measure added a bit of glue. So far so good. I think part of my concern was that I would trim too much and then the hole would be too big. It's a bit scary thinking that all your hard work could be ruined in an instant with one cut. So now I'm on to the next one and hope it goes smoothly. Will let you know. Thanks again.