Bob, honestly, This would be my first Festool sander and I do not want to experiment with expensive sandpaper until I figure out what works for me.
Right now, it is pretty simple, I use my Dewalt ROS with 80 to 220 grit mostly, but Festool has alot more options and two sizes for the RO90, plus they are not exactly cheap. I would have loved the assortment because I could have at least some sort of mixture to see what works for me without spending a few hundred and having some paper sitting around not being used.
I am still thinking about buying it, but that assortment would have definitely pushed me over the edge.
I was going to give you a call to see if you are going to make your own assortment. [big grin]