So I'm going the sintra route. I've cut out all the pieces I need, but forming them is the biggest pain in the ass I've encountered in this project so far. for example, with the chest armor, I heated each piece in the oven individually until soft and pliable. As many have suggested, I molded these pieces against my torso and then cooled them in cold water. I've done this about four times now, and each time they come out a little lumpy. is my technique screwed up or will i need to sand these to even out the outter surface?