Originally Posted by
THE_ANTIDOTE
Makes no difference at all. I am fairly new to casting and was repeatedly told the same thing...you have to heat cycle every new mold. I bought a bunch of brand new MP molds in brass, a lot of Lyman molds...some new, some used and began heat cycling on a few of the MP molds and one or two of the Lyman molds because I was convinced it had to be done...hog wash! I got tired of hearing it and thought...well what could happen if I don't? Nothing! Didn't change a thing, all my molds work great, obviously the more cavities, the longer it will take to get going...this was the only difference I ever noticed. I believe it just comes down to technique and practice. Best advice I can offer as a newbie caster myself is...trust your abilities and believe in yourself.