I saw some of these at the Onalaska sport show, a couple weeks ago. If I remember correctly, the purpose of the bend, was to prevent a fish, from throwing the jig. That is what I recalled, I could be wrong.
You Can see these jigs at http://www.www.vmchooks.com/bass.html. the theory to this type of jig is that fish ( smallies for me ) will not throw the hook as easly. Just curious as to if it really works.