OK. So I've only been wearing for 2 weeks today. In those 2 weeks I've done 4 or 5 de/reattaches. Until yesterday I always had ripples in the front lace.

The difference with yesterday was that I only laid down 3 coats of white glue (HD brand) along the front edge about 1/2" wide. Gave the edge a good spray of 90% Iso/Alch. Then I first attached the center edge first and slowly worked around to one side and then the other. The front came out perfectly smooth and invisible. The ripples that did happen were back into the joint with my natural hair line and well concealed.