The essential series plastic will not float on its own even when pored just strait up, it flat out sinks. So when you you use it with the midwest finesse jig it falls over. When using this set up the worm is supposed "float" so that the jig stands straight up to impart its action and not fall over. When I used the crystal clear soft plastisol the rig works like it should because the plastic floats with color and flake added to it.
So what does the word float mean? sink