In Minnesota, where bass fishing is closed until late May to protect the spawn we have to at a different starting point then our southern fishing brethern. Pre-spawn is a time when fishing is fast and furious, and fish in this stage can be found and targeted even in early June, if you know where to look. Most naturual lakes have areas which just don't warm as quickly as the rest of the lake. Sandy bottoms, deep shorelines, wind-swept eastern shores. Look for smaller areas which offer ideal spawning areas, after the spawn has occured in other parts of the lake. You will fish still moving in, aggresively feeding and not yet on the the beds in these areas. The best areas have boat docks and pilings for docks not yet put our for the year. Target these areas now, rather then trying to take fish beds in the warmer parts of the lake.