When I first started making baits I had a hard time figuring out how to weight a glide bait very similar to the Magic Maker. I had just cut out a piece of wood attached hooks and played around with weight placement with no luck, the bait would almost pull straight ahead with maybe a little lift. So I went back home thinking the same thing that it had to be weight placement. I looked at some purchased baits and could tell where they added the weight because they did not do a good job of sanding down the filler after they melted in the lead. The placement of the lead was almost identical to where I had placed mine and the bait weighed the same. I went back out to the garage fired up the router and put a radius on the edges of the bait. I went back out to a local park with everybody starring at me, cause I was throwing a chunk of wood bigger than any fish (Bluegill) in the pond. It glided perfectly after I put a radius on the edges. Conclusion, to some degree shape has a lot to do with the action of the bait. I believe the more you put the weight towards the center of gravity the more the bait will turn, but in my experience you can get it to turn to much to where it will turn 180 degrees on itself and will get caught on leaders and your line. Also I try to keep the weight as close to the belly as I can. Maybe you did the same thing and this helps. If not maybe a picture of your work would help others in determining the problems with your baits. I have not made baits out of oak (open grain looked to be a problem with sealing and painting) only poplar and maple so there are always going to be differences in weighting based on densities of the wood or other material being used. Hope this helps.