Thanks guys!
The lint filter has angled scoops molded into the outer rim of the filter. When the agitator is on the backstroke it allows the water to be pushed back, and on the forward-stroke it scoups the water up into the filter. If I get a chance I post a photo of the bottom side tomorrow. Yes, the tub needs to be full in order for the filter to work. I suppose that the thought was, that during the overflow the tub would push away any extra soap/lint, but the filter would get the pieces that were still floating on the top. Mostly just a gimmick, but a surprise that it can and does work!
I personally thought that the load was too small. Two sheets, a few t-shirts, and some socks. When the tub fills for the overflow everything floats to the top. The main agitation at the base is no longer as effective as it would be during a normal wash cycle. Plus, with sheets and the Speed Queen arch roll-over isn't going to be as announced as during other loads, and I personally am not a huge believer that roll-over is the key to washing. It is the water pushing through the articles that I'm more concerned about. I'd be more articulate, but being out and having a few in me is inhibiting the finesse that I would like to have ;-)
Terry - I'm close! Just got done with the bathroom. Time to finish the kitchen. Photos coming soon.
Ben