I've done them with the grooves out past the end of the wood, with much steeper angles on some recurves, etc. The bond should be stronger than the material it's joining. If so, they are one, and stronger than any selfbow. I won't use superglue on them. I fully groove their gluing surfaces with a toothing plane and use Smooth On, cured with heat. Including bows over 70 lbs, ain't had a failure yet.