I used to be all about smilin' bill heads as somehow I got it into my mind that the "mouth" on the jig made it somehow swim.

As I really thought that through and rationalized how much water resistance was actually caused by the mouth I figured it made little if any difference and put more of the success on jigs in the hands of the fisherman coupled with the amount of hair used. From there I began to experiment with different head styles and eventually settled on bullet style heads like yours and the Andrus jetty caster as I find it to be more forgiving in the rocks.