Could not disagree more. After sailing the wing mast in the A Class for three years, and chasing sailors like Pete Melvin, Ben Hall, Lars Guck, Bob Hodges, etc,etc, I have found you cannot sail these boats without continual adjustment of both the downhaul and rotation upwind. You need power off the line or you will end up in the second row. After that, as the boat accelerates, it is all about reducing drag for max speed. You do this by using the controls. If you have to luff up to keep from flying too high, you need to adjust both settings. If you are not having to let off some main occasionally, you need power. I cannot cleat my main from the wire, and most top sailors do not. You need to learn how to make these adjustments while sailing full on. There is a reson Gina does this, and they seem to win their fair share of reces.
Ken