Couple tips I got that were real helpful....1. Tilt work down and away from cutting direction to allow cuttings to fall away from work, 2. When draw filing if tang is in right hand it's a push cut....in left hand it's a pull cut. Only apply pressure while cutting, if you keep pressure on the file while pulling back it will break off teeth and give you bad draggers. As mentioned above read the knife making lessons Steve and Rich have compiled. there is a ton of good stuff there. Also take heed on all other suggestions above. It may also be a poorly dressed hammer that is causing these "Forge Marks", there is no substitute for good hammer control. There are a pile of ways to prevent that too.....too many to list....they are already typed somewhere on this site. Good luck and forge on.....Did I mention we like pics. :)