In a large stockpot, bring 6 quarts lightly salted water to a boil. Poach lobster 8–10 minutes or until tail floats, being careful not to overcook. Remove lobster from pot and allow to cool. Reserve poaching liquid and set aside. When lobster is cool enough to handle, remove meat from tail, claws and knuckles, reserving body and shells. Remove black vein and discard. Slice tail meat into ⅛-inch slices and reserve along with claw and knuckle meat. Cover meat with plastic wrap and set aside. NOTE: This may be done 1 day in advance, reserving lobster meat in refrigerator until ready to use. When ready to cook risotto, bring reserved lobster poaching liquid back to a boil and add lobster body and shells. Simmer until stock is reduced to 3 quarts, 1–1½ hours. Strain stock, discarding body and shells. Set stock aside. In a heavy-bottomed sauté pan, heat olive oil over medium-high heat. Add shallots, bell peppers and sliced garlic then sauté 3–5 minutes or until vegetables are wilted. Add tomatoes and cook 5–7 minutes or until tender and slightly breaking apart. Add rice, blending well into seasoning mixture. Cook 3–5 minutes, stirring constantly. Add reserved lobster stock, one (6-ounce) ladle at a time, stirring constantly until rice absorbs liquid. Continue this process, stirring continuously, until risotto is creamy and texture is al dente, approximately 20 minutes. Add asparagus tips, blending well. Season to taste with salt, pepper and granulated garlic. When ready to serve, add lobster meat except claws, stirring well into mixture. NOTE: Additional stock may be needed to retain moisture and creaminess. Prior to serving, fold in Romano cheese and butter, blending well. Add lobster claws, pressing carefully into hot rice mixture to heat thoroughly, keeping whole and taking care not to break. Adjust seasonings if necessary. To serve, place an equal portion of risotto in the center of each bowl, garnish with lobster claw then sprinkle with tarragon. NOTE: Additional stock may be added at any time prior to service to maintain moisture.