You can straighten the whole thing out, but it is kinda slower than the other ways(I LOVE THE TRACTOR IDEA K.!),You take the spring and heat up a good section, then put it over the heel of the anvil so that the tip is just a little past the one edge on the side, and the rest is over the other side, then hammer on top of the arch that makes until there is no arch, and continue on up the bar until the whole thing is straight. One thing to keep in mind is to keep both sides of the "arch" in contact with the anvil edges. This will make sure you just don't RIP your arm out of the socket everytime you hit the top of the arch. Ever hear the phrase "beat the daylights out of something/someone"? Well if you have your anvil oriented so that the heel or horn is pointing at a window or source of light, and you put the arch over the anvil, you will see daylight under it, and when you pound on the top of the arch, you beat the daylights out of it! Also when you have a ring on a cone mandrel making it true round, you sight down the cone looking for open spaces between the ring and cone, and pound those out, hence you pound the daylights out of it/them/that guy(hehe)! Thank you, thank you, i'll be here all week!