Followed Gordon Ramsey's instructions about cooking a piece of salmon. Cut skin across fillet, sprinkled salt in the cuts and some rosemary leaves. Put olive oil in cast iron skillet and let it heat till it smoked. Placed fillets in the pan, skin side down. There's where I left Gordon. He says ca. 3 1/2 min on the skin side and turn over then 30 seconds on the other side. Skin is supposed to be crisp. Mine was soggy like spaghetti noodles. What am I missing?