Webb Double Slant Blue Block Drywall Sanding Sponges - Medium
these last as long as trim tex and are 1/2 the price. I also like that the grit is the same on both sides. Why would you need 2 different grits. if you decide on a grit for your work the other is of no use. We like the medium which starts out a little course but is fine after 2 or 3 angles and then lasts much longer than fine