Cool Cucumber Summer Tartar Sauce

Name: Cool Cucumber Summer Tartar Sauce
Ingredients: 1/4 cup English Cucumber, finely diced; 1 tablespoon Red onion, minced; 1 teaspoon Rice Vinegar, sodium and sugar-free; 1/3 cup Mayonnaise, homemade or Hellmann's; 1/3 cup Sour cream, whole milk; 1 tablespoon Wasabi style mayonnaise; 1/4 teaspoon Natural stone ground mustard; 1/4 teaspoon White ground pepper; 1/2 teaspoon Kosher salt; 1 teaspoon Lemon zest; Pinch Garlic powder; 1 and 1/2 teaspoons Capers, drained; 1/2 to 1 teaspoons Sugar, to taste; 1 teaspoon Fresh dill, finely chopped; 3 to 5 Thinly sliced pieces of cucumber as garnish