I've got the Performax 16/32, and put things through there 'both directions' quite often. I can do this on most 'smallish' tabletops (like an end table) with great success. If the piece gets too long (not wide), that's when I've had problems. I'd like to have a closed unit, but I know where one is that I can use when I need to...which just isn't very often.
KC