I have to say once the first shot goes down and the edge is wet and melting all the shots are going to dribble down the edge and not into the glass. I would also make it so that you could make each side by itself it takes up less freezer space and you could run one luge at twice the length. When filling make sure it is as flat as possible because if it freezes with any lump/bump it will almost never sit "safe" enough in the tray.Overall I was not happy with this.Not worth the money.