I'm not sure about 60# but near the 100# mark and up it would be best to release them...few people do that around here because they are so hard to find. Best eating will be 25#-50# or so...I have eaten some around 70# and they were great too...trick is to eat them right away. Bleed the fish immediately and ice down for best results. Ifg your halibut gets a little fishy tasting like they do really quick then soak the fillets in milk over night. Takes most of the skank out.