[chandley]

P. 15, Impaling weapons. Harpoons have barbs that do extra damage when the thing is pulled out, so increasing CP to 1.5x basic damage wouldn't be unreasonable.

In TG, yanking on the string to pull it out would basically be you making an attack to reduce CP. I'd allow Harpoon skill (it is a basic function of Harpoons!) and rolling harpoon damage again, rather than a grappling skill and just grappling damage. The victim doesn't have that option however, even if they have Harpoon skill!