I recently used some Kiwi shoe polish on a pair of leather wingtip boots. It was a bit difficult to buff out, and it seems to be scuffing easily. I want to use a cream-based polish but I'm not sure what to do about the existing wax polish. I was told that a cream + a buff would take off the wax polish. If so, are there any creams you would recommend? If not, what should I do?