I really think the Hydrowave works great on lakes that have shad and other forms of big school bait like herring, alewives, etc. Now up here in Minnesota most lakes have sunfish and perch as the primary baitfish and the Hydrowave as far as I know does not have sunfish and perch sounds available yet. But whenever I go south to fish a tournament most of the reservoirs have shad in them and this thing can fire up the bass and at times will keep the bass schooled up on top longer then normal which allows a greater period to catch bass.