I wish I had saved the email but just a day or so ago, LAPOA sent out an email stating that one area was going to be "marked" by AMWA soon to keep boats from being damaged by an underwater obstruction. A boat had a 7 foot gouge ripped in it a week or so ago, the owner had enough sense to beach it before it sank. I saw a pic of the boat and I believe it was a pleasure boat.
All in all, it is a pretty open lake with a few areas of concern, of course. I'm a kayaker so I don't pay attention to the same issues as boaters. Someone else will likely chime in.