In a large bowl, using a fork, mix together the olive oil, vinegars, and salt and pepper to make a vinaigrette. Set aside.
Using a mandoline, slice the zucchini lengthwise into matchsticks. Or, using a very sharp chef’s knife, cut the zucchini lengthwise into very thin slices, then cut the slices into matchsticks. Pat the zucchini dry on paper towels (excess moisture will dilute the vin