Here are some videos of skiving with a new roller foot and some of the advantages this roller foot is capable of. Having worked with many various leather types over the years including glazed finished crocodile I found it necessary to have a skiving foot that did not scrape the top surface and allowed leather to go through more smoothly with less friction than the normal supplied feet can give. I made up my first roller foot by cutting down a spare normal foot and making a brass roller to fit on