No side by side experiments or blind triangle tests here, but I think I've achieved a better quality foam by utilizing a hochkurz mash... something about that extended 160° rest maybe. I've always had decent foam, but this stuff just wants to hang around and cling to the glass. Also, I'm not using carapils or carafoam... finding this result even with all pilsner malt beers. YMMV.
"If more of us valued food and cheer and song above hoarded gold, it would be a merrier world."