I’ve looked through the thread quite a bit but I’ve never been able to really find a good systainer that will allow me to hold the sandpaper for the RO90 (both triangle and flat) along with the 150 paper. I usually buy in box of 50 so I don’t mind getting a large sustainer and keeping them in the box. I should note that it is mostly for convenience, I only take the sustainers out of the shop occasionally. From what I can tell there doesn’t appear to be a systainer that can hold let’s say four or five different grits of RO90 flat and triangle and four or five grits of the 150 sandpaper. Any thoughts would be appreciated