: Brian - I have used the Klingspor discs on all of my boats. I find the
: "Stearate" Non-Loading (hook and loop) work the best and last a
: long time. I use 80 grit for fairing cedar and as a first cut on epoxy. I
: finish with the 120 grit. Like yourself, my sander is 5"-8 hole. The
: box of 50 lasts quite a while. Their catalog numbers are VD60001 (80 grit)
: and VD60003 (120 grit). - John

I second John's recommendations on the paper. The VD60001's & VD6003's are great for glass work. Much better than the Makita factory papers. They cut pretty aggressively though, so don't take off more than you need to.

You probably have already figured this out, but if you hook a shop vac up to the dust collection port on your sander it will A) increase the life of your disks by 2 to 3 times, B) eliminate nearly all of the dust from the process and C) speed up your sanding, since the sander no longer 'floats' on a bed of dust.