Has anyone grown and processed their own Styrian hull-less pumpkin seeds? I've read that on a small scale it's possible to press them using a mortar and pestle to extract the oil. I've read various things about when to harvest the pumpkins from when the vines die back to when there has been a light frost. Since these pumpkins aren't meant for storage I suppose that may be ok. If anyone has done this I'd love to hear your experiences, positive or negative.