if you put just a little bit of synthetic 2 cycle engine oil or copper coat on the block pins, washers, and pivot points it will extend the life of the mold, especially if they are aluminum. apply with a Q tip, a little bit goes a long way and wipe the excess off so it doesn't get inside the cavity/s. it will smoke when hot, so have good ventilation for sure. bonus is the smoke tells you the mold is at casting temp.
I did that! Have a Vulcan S