Just my humble opinion, but right now the lure has kind of a crescent shape. If you recarved the tail straighter I think it would be better. Then again there are crescent baits that seem to do well.
If you decide to make the straighter tail, Id make an imaginary line from the line tie eyelet to the bottom hinge eyelet. Extend this line and recarve the wood part of the tail to position the V of the soft tail pointing in-line with this. Either that or run the imaginery line from the line tie to a point 1/2 way between the 2 hinge eyes. Then line up your tail. Doing this should give you a more snakey action rather than the hard to control wobble I'd imagine you now have. By having everything lined up closer to the centerline of the bait you should also get more efficient transfer of energy on the hookset.
Tight lines,
Wade