Cook lobster(s) in boiling salted water approximately 10 minutes. Remove lobster and reserve 1 cup of the water. Discard the rest of the water and allow lobster to cool to room temperature, remove shell and chop lobster meat into large chunks. Set aside.
Add enough salt (I usually add about a palm full of salt) to 10 cups of water and bring to a boil. Add pasta and cook according to directions. Drain and set aside.
In the same pot, add the heavy cream. the crushed garlic and the reserved water.. Bring to a simmer and add Gruyère cheese and Dijon mustard, stirring until cheese is well blended. Add cheddar and parmesan and continue stirring until all cheeses have melted and are blended with the cream. Add hot sauce and Worcestershire, adding more for personal taste. Season with salt and white pepper. (you can use black pepper but I don’t like to see the specks in this dish) Add pasta and remove from heat. Let rest for 10-15 minutes. Remove garlic and add lobster meat, stirring to mix.
Place in either a casserole dish or individual au gratin dishes and top with more cheese and crushed potato chips. Heat in oven until bubbly, approximately 15-20 minutes.