Someone once suggested drying test prints in a microwave. I do that now to be sure that my drydown factor is correct. I dry prints that are intended for display and sale on screens. I then flatten them with either the dry mounting press or with a composite board. The composite board that I use is a cutting board that is sold in kitchen supply centers. The weight is nice and it works very well, although a little slower, when I don't want to heat up the press.