I poured a little last night and used a hot plate turned on "High" to keep the Pyrex cup warm. It worked well for a while, but then the plastic started smoking. I turned it down a little and that seemed to fix the problem. I've got a couple new molds being delivered today so I'll be doing some serious pouring over the weekend. My wife, who I refer to as TPO (The Patient One) has offered up one of her electric skillets so I'll be trying that out as well. Thanks again.