I bent mine a couple of times, too. I heated up the bent area with a cheap propane torch(the little torches that you put on small propane bottle, like plumbers use) for about 5 minutes, then beat the heck out of it with a sledge hammer. It is now close enough that you can't tell they were bent.
Sometimes I wonder if by heating it, I took some of the strength out of it. It never got red, just warm, but I'm no expert when it comes to steel strength. It seems to be fine, now.
Anyone else have any thoughts on this?