As my building progressed, I found that if once all my holes were drilled, lip slot cut and the bait carved, sanded to finished proportions. I would "load" the bait with hook hangers, lip, line tie and ballast weight, once that was done, I would place it in a pot of water and test it for "floatability" if you will. I would find, if I placed the correct amout of ballast in the bait, it would sit lip down below the surface and what I call "square to the water". Giving the bait this attitude, it would indeed dive right away and perform flawlessly. Once and a while a bait would list to one side or the other and I would drill a 3/16 hole and insert a small chunk of lead, tape over and check for attitude in the pot of water. When that was taken care of, I would epoxy paste the plug and go about assembling the bait for paint. After working on the bait for sometime, I did make a template with bill angles, hook hanger locations and a line tie location which allows me to make an exact copy of the bait before carving.
Jerry