Q.1)What do you look for in the cometic gaskets that would tell you that its not usable anymore. I have not had a blown head gasket yet and they have only been removed because the heads were being changed. this will be the third time re-using the heads.
Q.2) Do you think i would be better off putting my head gaskets on dry again, or using the spray seeing that it is the third time re-using them.