Now that I've got it and used it, I think we'll become friends for many jobs.
I went on line to see if mine was running right. I thought it might be spinning a little slow. It seems it's common for many to just hang theirs from a rope and let it run for eight hours, to break it in. Too, it's said dropping back the air flow of the vacuum can speed up how fast the disk spins.
With the vacuum attached, it is pretty much dust free, and disks seem to run a long time, since they don't load up, because of the vacuum.
This makes for a nice finishing sander at a pretty reasonable price. One still needs a Rotex, 150 or a Bosch to hog material off at a reasonable rate.
The reason I have what you want is, I never lent it out before.
Scraps are a myth.