The original question was how to replicate this action without altering the body style... I might have a solution, was tempted to keep it and try it myself on a future project, but it never would have crossed my mind had i not seen this thread
Suggestion: flat lexan lip with line tie on the tip....... Would allow you to place weight in the center of the "body" yet still have it in the rear of the "bait".. The lexan would be the least buoyant point, so the nose should drop like in the video.. The line tie on the end should prevent deep diving while the lip acts as a "brake" allowing the heavy trailer (i mean tail) to "jack knife"..... But getting that lip the right size and shape will b a job!! Im picturing a fatter lip than on a crank bait, to prevent the sharp edges from "cutting in" and rolling the bait
Not sure if this would work in the water or not, but it seems to work in my head