Scale can be a pain. Nevertheless it represents carbon leaving your steel. I think one loses somewhere around .03% of carbon PER HEAT! Now that may not seem like alot but remember, steel is going to lose it's heat quicker than that mild steel that you're so familiar with. Work quick and forge the blade as evenly as possible to reduce the number of heats. Here's a trick I use and love...Wet the anvil before forging. Now this may seem crazy and one would think that it would cool the blade too quickly but the scale flies off. I even wet the hammer head when I'm getting close to the end of the forging process. Oh yeah, don't get scared by the loud POP that you're going to hear. This method works for me and has saved me countless hours of polishing! Experiment and decide for yourself!!!