In a small bowl add soy sauce, mirin, tempura sauce, daikon, lemon juice, lime juice, Tabasco and mix well, set aside. Preheat your grill on high.
Season collars with salt and pepper and grill for 2 to 3 minutes on each side. When done, the fish should be nicely charred and the flesh cooked through.
Serve the collars with the dipping sauce on the side. Enjoy with your favorite side dishes.