another thing to try while bobber fishing is the power bait tiny tube jigs that come with a hook in them in a pack of 3 or 4. tip em with a meal worm. adjust leader so its not in weeds etc. instead of a bubble you could use the old school stick bobbers so you can seem em fart on it. the tiny tubes sink slow so just a tiny wiggle every 30 seconds to a minute to entice a bite. that way if theres anything swimming bass, sun fish, trout they should hit it. or have a better chance than hucking metal.