I did the same thing so I wouldn't have to get up and down to press blocks when piecing. Thant's because I like to sit in the living room when I'm doing this so I can watch/listen to TV while sewing & visit with DH. It works great. Besides, we never use the wooden TV tray anyway. DH uses one in the garage when he is working on small pieces so he doesn't have to stand at his workbench. So we are doing our part to recycle. :D