I was hoping to see if anyone can help me. I am cleaning a seized Ilex No. 5 Universal Synchro shutter. One of the problems that it has seems to be the shutter blades. The plastic composite shutter blades are warped (wavy) and interfere with each other when they close. Is there are way get the heat the plastic and get them to be fairly flat? I have them between the pages of a book right now to see if they will flatten out but I have very little faith that this will work. Any suggestions would be appreciated.