I've been out of this for a while due to work and illness. So, I am trying to do a custom paint job for my son's Gaiking. I am almost done but had to paint all the limbs separtely. My question is what is the best way to reattach the arms and legs to the torso? Should I heat the torso openings or the limbs to put them back? Also, would putting a temporary barrier (ie: tape around the opening an effective way to minimize any rub that might occur during reattachment?