I have an A03 version, love it. But I am building a small rack system, and with the rubber feet on it, it takes up 2U of rack. I heard the new design allows the rubber feet to be taken off properly. So, now what? Do I just sell mine and take the loss and somehow buy a new one? I would have to buy mail order, and don't know if I can get the A05 from someone before buying. Does GK take back old ones and modify them? Anyone buy a MB2-500 within the last month and get the A05, or should I just wait a few months to make sure I get the new design?