I’ve done it two ways. I use a Dremel to cut a small slot on the bottom of the lip slot to accept the tail of the line tie. Alternatively, you can cut a slot in the end of the lip and bend the tail end up into it and then crimp it down on the lip’s top surface. You need to cut slots in the bottom and the top of the lip slot in this case, but it makes a very secure lip package to glue into the bait. I use soft temper ss wire, usually .041” Dia for my line ties. That allows you to tune the bait without cracking the lip.