Thanks Kim, I have to admit I may be more confused about the correct placement of the returns than when we started this conversation. Kim I appreciate you trying to help teach this newbie about optimal return setup.Returns right across from the skimmer will move only that stuff in to them. You also want returns to keep all areas such as the corners. The thought of the V skimmer is the water will cause the water to hit the walls and "bounce" the water back to the skimmer.
Return on the bottom of the wall to move stuff to the main drain-I am rethinking the placement. I am thinking one on each end to push anything to the drain.
The key to all of this is being able to have full control on the power/pressure of all of the returns and suction strength of the skimmers and main drain. That will happen with the use of good valves.
I am also going to lean on Ray to give some input.