I noticed my platform wearing or rather the blade seems to be cutting into it thereby causing more aggravation in sliding my blades back and forth. I realize I can buy a replacement. I suppose these are made out of hard plastic. Has there been any thoughts of making these out of something harder that will not cut... such as maybe marble? I guess I could take one to a couter top builder and have one cut out of marble and then drill the holes for the screws. Any thoughts on this?