The AMP comes about from working with JJF to create a board that excels in smaller, weaker waves, giving more flow and drive when the waves aren't that good. It is now a part of his world travel quiver and comes out when the surf get slow.
The outline is slightly fuller through the nose and tail, and has a nice little hip going into the tail before the fins to keep it loose.
It has a medium rocker with a lot of single concave (more than any of our other shortboards) which gives a lot of lift and planing speed, and keeps it maneuverable when going through slower sections. Overall this is a great board to add to your smaller-wave game and is a good all arounder for most places in the world with less than epic waves.
I recommend going an inch shorter than your good wave shortboard, and a little wider/thicker as well. A little extra foam is always your friend in less then perfect conditions.