I don't think bed fishing effects most lakes much at all. At some of the lakes I fish during the spawn I will rarely see big fish up shallow and these lakes have alot of big fish. I really think alot of big fish spawn at night and/or spawn deeper than the smaller fish. That would be cool to see some kind of spawning study on big female fish over 8lbs. Some kind of tracker like they put on Marlin that pops off after a couple of months. Then we might get some more info on their habits during the spawn.