@ DSV
Hard to recognize on your picture(the flash reflection's disturbin') , but it seems , that the tow eye is located just a little fraction underneath the very point of the head of lure

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The front section of your lure is also of a symetrical shape !
After my personal theory the head of a swimbait and the location of the tow eye have to be furnished in a way , that the oncoming current on retrieve would be stronger either on the top ,-OR bottom portion relating to line tie position

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This uneven pressure on one of the two portions creates a kinda lever around the tow eye and causes the lure to swim back in the typical "snake-like" pattern

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If you still want to alter the action now , you should move the tow eye a bit down the chin or up the nose of the lure , so then it probably would feature this typical swimbait action .
Or you might as well set in a smaller lip at almost 90° angle to achieve the same purpose .
But as you seem to be very delighted about this "twitching" action of your bait


, you would surely deny the contents of my post here , but it might be helpful for future lures

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Keep up the good work

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Greetz , diemai