The hardest part I found before I did a "look at and see what I can figure out study in my bathtub with clear water" was when they sink to the bottom, they nose down and tail up. Giving to the reason of the flat portion on the bottom in the front. A very good indication of where the eye tie must go comes from this little clue. To far up and it will lay to its side when retrieving. To far forward and it will nose up too sharp and too fast and be gone before the fish can figure out where it went. You have about an 1/8" to work with, if that, in this 1/8" you can make a tight wiggle or a loose wiggle. And that is a preference of whatever they want. I really wanted to make more of these but it takes time and a lot of testing to get things right. But once there, you can whip them out pretty fast even by hand. I still play with them once in a while trying two different lures and making one. Some came out looking pretty cool. Some not so very nice. lol Its all a learning experience.