So I just bought a barber hone on ebay to use for touch ups on my razors and as the title says, just wondering how often I should use it and how many laps. I don't know if it really makes a difference but it was a vintage Carborundum ( VINTAGE CARBORUNDUM RAZOR HONE in box on eBay.ca (item 220603884376 end time 17-May-10 19:44:21 EDT) ). Thanks.