I just got a new 700, and in the packaging were two rubbery foam discs, that were the exact same oval as the shape of the base of the horn handles. They even have two holes in the same locations as the screws. However there was nothing in the instructions regarding these, nor have I been able to find anything online about them. Are they just packaging and need to be discarded, or is this some kind of heat resistant gasket that should be installed between the handle and the lid to prevent the handles getting hot? Picture attached.