So I recently bought a toy a Reissue Sideswipe which the seller failed to tell me had a stress mark on the spoiler. I am just wondering what is the best way to get rid of the stress mark. I have read that you need to heat up the spot with a hair dryer. Well, I have some quick questions: 1- How long do I need to heat up the area for? 2- What do I need to look out for while heating. Will the stress mark change colors? 3- Since I cannot remove the spoiler, the metal heats up pretty quickly. Will the paint bubble on the diecast from doing this? 4- Do I do this in multiple passes? I did it once, for maybe 3 or so minutes, but the stress mark is still there. I am just worried that the paint will bubble, so I wanted to ask first. Thanks, [Edit with Solution] I used one of those Bic lighters you start a stove with. BOOM, it was like taking an eraser to the stress Mark. For those of you looking in the future, keep the flame like 3 or so inches away and work in a circular manner. Try getting closer but not too close and always keep the flame moving. I had no warping or anything with this approach. What you will see happen is that the stress mark will immediately disappear.