I have two questions regarding the following Gravati shoes I have: First question: What is your recommendations regarding polishing these shoes since they have contrasting stitching? I've heard some say they use their fingers to polish shoes, which I suppose would give more control, otherwise, what are your recommendations? Second question: Regarding the sole. I am one who tends to wear down the tip of the sole quicker than any other part of the shoe. I do not live in an area that would be able to insert a steel tip like some have done with Weston shoes, nor would any shoe repair shop in the area know what I'm talking about. Any recommendations on what to put on the tip of this sole to extend the life of the tip? I would welcome specific suggestions. Thanks for your input.