Too many bass and not enough food are two sides of the same coin. The first one causes the second!
I would take out every fish below 13" and every fish above 13" that is below 100% relative weight. If you use the relative weight chart for a while you'll develop an eye for what a fat fish looks like.
If you go through my thread (see below) you'll see that you really can improve fish quality by intensive selective harvest.
