Prepare your mise en place.
Using a mandoline, cut each squash into 6 very thin slices. Set aside.
In a small mixing bowl combine the crab, 15 milliliters (1 tablespoon) of the balsamic vinegar, the olive oil, mint, and tarragon. Season with salt and pepper to taste and toss to combine. Set aside.
Combine the remaining 60 milliliters (¼ cup) vinegar with th