You can try using smaller split rings and hooks...or try shaving the bill down a little bit. I have been shaving the bills down on some mag warts. I can get them to run 2-3' shallower, but have never done a jerk bait.
Try cutting some stencils ..will help get a good hard edge and be able to fade off the other side. I make mine out of o .020" pvc, its flexible enough to fit around the bait and will work for both sides.