HI,
I agree that dry pack scallops provide the best flavor with least loss of moisture.
When you cook scallops, you do want to develop a nice sear for looks, but you do not have to worry too much about internal temperature. Scallops do not need cooking to become tender. Therefore, I usually concentrate on searing the top, good looking side of the scallop.
Dry the scallops between towels allowing them to come to room temperature.
Carefully score shallow cuts on the top side of the scallop; I use a trapezoidal tic-tac-toe pattern.
Bring a heavy skillet up to temperature with your preferred fat, maybe grape seed oil and clarified butter.
Season the scallops with sea salt and freshly ground white pepper.
When the fats are at the smoking point, place the scallops top down in the pan. They should be will separated.
Sear for 2 minutes; check for the appropriate color.
Lower heat to medium and cook for 1 minute on the second side.
If you do not have dry pack scallops, there is a method to prepare your scallops for searing. Soak the scallops in 1 quart cold water with 1/4 cup lemon juice, and 3 tablespoons sea salt for 30 minutes, before drying and scoring the scallops. Also, omit the salt in seasoning before cooking.
Good luck,
Tim