To me, the reason to have the crappie fluke mold is for the tail portion (give or take a little)... by its very design (the thicker taper leading out to the end of the tail), it gives off better vibrations when dropshotting, which most times is specifically what I'm looking for. If I'm looking for more wiggle (such as when fishing clear water), then the fat fork would be my dropshot of choice, but most of the time I'm fishing stained waters.
As far as easy mods, I like twisting it at a segment line (for a clean end to melt) and joining it with a larger body to up the overall size while keeping the tail. Below bottom is the original crappie fluke, the middle has the tail spliced with the body of a 3" OG grub , and the top one has it spliced with a tango tube.