I bought a used 16-32 a few weeks ago and just wanted to comment that dang, it's so slow! I've had good results with most everything I've run through it the exception being an almost 3" thick, 21" wide, 60" long bench top that I had hoped to sand in two passes. It was just too heavy and ended up gouged in a couple places where the weight tipped it up into the drum. Usually I take anything to be sanded to a local mill shop where they have gigantic double belt sander. I think that wide double belt has spoiled me! It's so fast compared to the little performax! I was also very pleasantly surprised by how quiet it runs....I actually ran a piece through it a couple times and didn't realize the drum wasn't turning!
Overall I'm happy with the machine, just wish it was a bit faster. After a I use up the last couple rolls of paper I'm gonna try Abranet on it.