Dual Action Agitators
Hi Ransome, The facts simply are not on your side, the agitator blades on any agitator do the real cleaning and also can cause wear to clothing, having the clothing turn over in a wash load simply gives more even cleaning and less wear to clothing, the spiral portion of a DAA simply would not damage the most delicate hand knitted sweater.
Yes with a light to medium load a DAA does not make much difference, but everyone needs to wash large items and loads at times like the poster above washing her blankets. A DAA also can make a TL washer more energy efficient when by allowing larger loads to be washed, Climate Change Is Real.
20 some years ago CRs called the two piece agitator the greatest advance in agitator design since the invention of agitators in washing machines, As an expert on Automatic Washers I agree, but you can believe what ever you want.
John L.