Newby here. I'm attaching a french lace topper. In the crown area, I'm getting folding/bunching of the lace. Is this most likely due to a bad fit or a bad attachment? I'm starting the attachment at the front and working my way back. But for some reason, I keep getting bunching along the sides of the crown (if that makes sense) and this not only makes it very detectable to the touch, but also makes the attachment not very good. Any suggestions would be very much appreciated. Thanks.