Don't even think about heating it. You can't get the bend out by leaving it bent the other way. You will have to put it between two anchor points and keep "wiggling" it to get the bend out. It takes a long time. You will have to push it past the bend in the opposite direction. Take the diamond wires off. One anchor point will have to be at the peak of the bend and on the opposite side near the end of the mast but not all the way to the end. You just have to keep working is little by little. BUT the dent is a huge problem. Do you have any pictures?