I guess the idea there is to get the hook in the top part mouth. This is the hardest/thickest part of the mouth on a bass, which is the ideal target for obvious reasons. I think you're best chance to do that is setting the hook straight up. A sideways hookset will sometimes get the hook towards the side of the mouth which is the thiner. I'm not an expert by any means with the fnf but I do apply this concept when fishing other baits.