Update: I made my first two baits. I went with an s-waver mold. I kept the whole entire bait in tact and made the mold. It works surprisingly well although I wish I had poured it vertically to make installing hangers easier, but I guess I'll do that later when I decide to re-do the mold. The mold works well. All I do is pull the two pieces apart after pouring, then put the joint hardware on and cut slots for the cotter pins to slip into. I ran into problems trying to pour with the joint hardware already in. As it is a one piece mold so the plastic was overlapping and screwing up the joint action and placement.
I did the joints two different ways to experiment, one with interlinked screw eyes and the other with a "pin and slot" joint. The bait with the interlinked swims well at very, very slow retrieves and when twitched it walks like a spook and still has the joint action. It is a floating model.
The "pin and slot" one swims like an s-waver except more head action but works only at slow speeds or when twitched as well. It is a suspending with weight in the head. This one doesn't have a tail. Instead, I plan I adding feathers or fur to make up the tail. Hoping it adds more action. I would add pictures to show what I mean but I'm away for a few days and forgot to take pictures before I left home.
My question is: why would it only work at slow speeds and how do I fix this?
When I retrieve fast, it straightens out and doesn't wiggle at all.