For the marinade, mix ponzu, ginger, soy and sesame oil. Marinate fish for only 10 minutes. Over-marinating will fully cook the fish.
On a hot grill, season the fish and mark both sides. The fish will take about 8 minutes to fully cook.
For the salad, mix the neutral vinaigrette with the gari and toss with pea sprouts. Place a small mound in the middle of the plate and top with grilled snapper. Drizzle plate with soy ginger and wasabi oil.
Whisk all together.
Soy Marinated Ginger:
Bring vinegar, soy sauce, brown sugar, and scallions to a boil. Add ginger, bring back to a boil and simmer for 5 to 10 minutes.
In a stainless steel bowl, whisk wasabi, mirin, and sugar. Add water until a loose puree is achieved. Whisk in oil.