Handy two things. I saw a picture earlier that the wire came out the center of the lure, you want it to come out below center and as far back towards the lip you can. Typically you add the lip in and if needed cut a slot or drill a hole in it with a battery drill.
Adding weight-I done some playing with that and found a slug between the lip and belly hole gave you a nice dive without removing the wiggle. I stuck a 4 gram small belly wt in there originally. Keep your finish coats thin so you don't add alot of bulk to them. I wanna do one in foil now. I have some special hot foil that would look pisser on one. Going to make a bunch more. Lots of fun to fish. I'm going to do some more with these this winter.