exact situation that shaky head worms were designed for. go with subtle color like green pumpkin and saturate the bait. ie let it sit in front of them and sit and sit and sit........when you do move, very subtle twitch only. i follow up if no takers on shaky head with a match the hatch colored swim bait - as small as you can find and burn it by their face. if neither of these work, come back tomorrow. good fishing. maddening to see em and not get em to bite.