all the reg says is a scar in place of an adipose. if there's a clean scar made from an obvious clip, there's no doubt in mind it's legal. the clipping of the fin is just a way of identifying hatchery from wild. i've never seen an injury on a fish that heals as cleanly as a precise cut made from a surgical tool and further more a cut to such a small torso that most predators couldn't even bite off without taking more than just a small flap of tissue....but with that said, if you're not sure or don't feel comfortable with the misclip just let the damn fish go!