Just finished my St. Wilhelm's Feat of Strength. I did pretty good. In the first video, I folded the tool steel bar in one heat. It took me about 20 hits to hold it over, and a few to close it up.
http://www.youtube.com/watch?v=u2GXxLayLpw
In the second video, I flatten a railroad spike in one heat to show the contrast in how much force I was using just to fold the tool steel over.
http://www.youtube.com/watch?v=7jQfPImOjL0