1. Joola using different sponges for Red and Black Dynaryz ZGR

    Just received two new sheets of Joola Dynaryz ZGR, and much to my surprise, they are using notably different sponges. As you can see below, the red (left) has much smaller pores than the black (right). The more porous black sponge looks the same as my old black sheet. I purchased both from...