The current limits are pretty good. Perhaps a 20 fish of 10" or greater would be better, but maybe not. 25 fish per fisherman is pretty simple and easy to enforce. I think if that rule is obeyed you would be hard pressed to completely deplete any body of water.

The biggest danger to specs IS NOT overfishing, it is damage or destruction of their environment AND/OR invasive species. Eagle Lake used to be a great spec lake, but the mismanagement of that lakes environment has made it less so. Much of the lakes edges have been build on now. Most people are clearing all the weeds from their lakefront. There is hardly any pads or grass for the fish to lay out in. Also I believe they have really cut down on gators in that lake. This has led to a big increase in the number and size of gar fish. Gars compete for minnows and eat Juvenille specs. Add to this that the lake used to be overfished with people taking 100s of specs every night out of the lake and it will take years for it to recover.

Kissimee chain is so good just because it has so much great cover for the fish. There are probably specs burried in parts of that lake that will never have a minnow with a hook tossed in front of them. They just keep putting out high quality children.