try the trailer hooks-
http://www.lftlures.com/categories/f.../products/1790
you should see immediate results, I have. the frogs seem poorly designed for fish inhaling their prey. even with the two Mississippi technique the frog will just slide out of their mouth when a hookset is attempted since the hook points are not protruding. in contrast every pike I've caught on a frog has hooked itself from the ferocity of the strike which collapses the soft frog body exposing the hooks (don't expect your frogs to last long with pike : - ). prior to using the trailer hooks my hookup percentage on bass was a dismal 5% at best, despite using braid, a frog rod, and a zero reverse reel. since getting the trailer hooks I've only missed one out of eight and I'm pretty sure what he did was tail slap it in an attempt to stun it as this happened a foot from the pond bank after I hopped it in from a land cast to emulate a frog jumping in and I think it landed on top of him. I left it there in hopes that he'd return once I twitched it again as they often do but he didn't. hope this helps.