I do not know if this helps but I leave the metal plate on year round in the past, makes a pretty good skid plate and have never bent the two brackets yet. Even with the OEM plastic skids stuff gets in there. Mud always finds a way. This time of year there is no pressure washing the frame when at freezing but unlike Erie ( and you know all the jokes about that place) they do use lots of salt so maybe try to clean the frame whenever you can.
Going from Florida to Erie is quite change in weather conditions.
Going from Florida to Erie is quite change in weather conditions.