The way I start is nothing more than a flat shape with a center line. Lip slot cut, ballast hole, line tie and hook anchors drilled. I just start taking off material off with an Exacto knife. Once the bait is shaped the way I like it and it looks symmetrical (symmetrical being most important) I sand with a Dremel drum to take off the knife marks and then sand with 100, 150 and 400. Primer, sand the primer with 400 and then paint. Nothing sacred, just lots of practice to get the bait symmetrical!