I ran a test last night with 220 grit sandpaper on vegetable tanned leather (hand sanding). I was very pleased with the results and will be using this method on a nubuck handbag I'm building. Hope this helps - it's not hard, but it is tedious. If you have more time than money, this is a suitable method to create nubuck with veg tan leather. I've not tried it on chrome tanned leather yet.