@Alex what is your opinion of the Mirka screen type abrasives? I don’t use them steadily enough to be certain but my feeling is that there is too little abrasive in actual contact with the work so the pads wear out too fast.
My opinion is limited to the fact that I stay away from them without having ever tried them. Seems to me they would tear up in a jiffy, and destroy my sander's pad. I already have a line of papers (Indasa) that suits my needs and costs half what Festool and Mirka offer, so no need for me to even go anywhere near mesh abrasives.
I also hadn't bought Festool paper for quite some years, but last week I got a box of Granat P80 from a painter for my RO150 and I am using it now, I am astonished by how little actual paper is left because of all the holes.
I was already impressed with how well Festool dust extraction is when I first got into Festool 11 years ago, it is what got me hooked on the brand, but I see little improvement on that part with the newer abrasives, but I do see how flimsy it is now. Festool's gone completely overboard with their "more holes is better" idea - it is not, sandpaper's main goal is not to extract dust is, it is to CREATE dust. And in order to improve the extract part with 3% they now decreased the create part with 40%. And, you catch a corner or a nail ...... boom, paper torn. No thanks.
Mesh paper seems even worse to me.