I have a 8288SS with a counter extension with tabs that fit into slots on the main counter. Unfortunately having the extension makes it impossible to put out out the sleeper sofa, but of more annoyance is that the counter extension is over the bank of drawers for your utensils. Essentially with the counter extension in place you need to stoop under the extension to get to the drawers. As a consequence I hardly used the extension because it was more of a bother than it was useful. Recently I decided to remove the mounting tabs and replace them with hinges. Then I mounted the extension onto another side of the main counter so it now swings up to mount, and swings down to store. In the store position it is out of the way of the slide and another benefit is that I need not find a place to store it (formerly stuck it under the sofa). Take home lesson for me was to look at the interior of the rig and assess what I would do if I were to redesign the layout. In my case, the manufacturer did a great job of making the interior look good at the expense of function.