Thank you for your kind words.
I had your work with preferments in mind when Mike and I were working on the tool, and we had hoped to be able to include the classic preferments like poolish, sponges, bigas and old dough as part of the preferment tool. However, as you know, there are so many variations of these preferments, with so many possible combinations of ingredients, that it would have been very difficult to cover every possible variation. Even if we could have overcome all of the programming and other challenges, we concluded that with so many choices we would have just confused everyone but the experts in preferments. I think it would be fun, however, to design a few specialized preferment tools, even if they are the classic ones, but I don't sense that there is much demand for such tools among pizza dough makers.