Poison, that first link is a great site. I had never come across it before. Bookmark set. Cheers.

My challenge when I get into durable construction and hard board, I get more cautious and hesitant. By working on paper this time, I'm just going to blast it out. If I'm only using supplies that would otherwise go into the bin, I'm not concerned about a serious mistake. As soon as I've got good light I'll get a photo of the first round of foam. I made a lot of progress but blistered my hand with the high-temp glue.