Just a thought. Could you use spinner wire on your leader so that the wire can't be taken? It works fine for prawn spinners.

I heard a similar question at a seminar a couple years ago in regards to prawn spinners and toothpicks for springers. The guide said he hadn't considered it, but he hadn't seen any toothpicks in the fish he kept. I'm not sure how often he looked though.

Sooooooo, the looming question is, how many toothpicks have you found inside the fish you've kept?