anyone know the best way to get glue off the black rubber part on the front and the back of the shoe? the quality on these things are pretty horrendous for $190. i have a massive toe bump on the right shoe, left is fine. the marvin the martians i picked up are incredible compared to these. I love the overall look of these bordeauxs and i won the tongue lottery on my pair, they're amazing. i don't want to return them, just wondering how i'd go about making the black rubber look halfway decent. thanks