I'd have to beg to differ with the Klingspore guy, and if it's anything like up here, they can't keep a rep longer than 12 months...
On my 43" Sandya, there's 120 grit cloth backed belt in there 90% of the time, with the hard platen. The only time that belt comes off, and the platen comes out is if I'm needing to thickness a slab that's wider than my 24" planer. Then I put in a 80, or even a 60 on occasion if I'm really hogging off material. I get it close then back to the 120 grit and platen. Using the platen will always give you a better finish than just the drum. It also makes your belts last longer because they heat up less. I go from 120 on the widebelt to 150 then 220 on my orbital. 320, 400, 600 if it's furniture getting my Livos oil finish.
I have a?180 grit belt, but I rarely ever put it on.
Jason Holtz J. Holtz Furniture
3307 Snelling Ave. South
Minneapolis, MN 55406 612 432-2765
-- Jason J. Holtz Furniture 3307 Snelling Ave. South Minneapolis, MN 55406