Cook lobster tails in boiling salted water. If thawed, boil 11 minutes. If unthawed, allow 1 minute longer. Drain, and drench with cold water. Cut with scissors through thin undershell and pull out meat with fingers. Chill and cut into dice. Combine lobster meat with celery, mayonnaise and sour cream. Test for salt. Line salad bowl with greens. Pile salad in center and garnish with sliced hard-cooked eggs and capers or olives. Yield: 12 servings.
Note: If larger lobster tails are used, allow for boiling 1 minute more than weight in ounces.