why does it seem like on most of my blades i have to use 3+ pieces of tape to get a sharp bevel set? mind you they are all either chinese or vintage. as i understand it the bevel is important and it has to be as sharp as possible before moving to the next stone and to try and remove the initial hone marks before moving to the next stone. can someone explain why this is. am i doing something wrong or is this pretty normal for non high quality well known branded razors