Heat your grill so it's ready to grill the burgers.

Chop the bacon and cook in a non-stick skillet over medium to medium-high heat until crisp. Drain on a paper towel lined plate and set aside.

In a clean, glass bowl, whisk together the mayonnaise, sour cream, buttermilk, blue cheese, vinegar and salt. Set aside in the refrigerator until ready to serve.

In a separate bowl, mix together the ground chuck, soy sauce, paprika, salt and pepper. Form into four patties. Grill to desired doneness, medium to medium-well.

To serve, divide the lettuce so you have four "tops" and four "bottoms" as buns. Serve the burgers with lettuce buns, topped with tomato, bacon and plenty of blue cheese dressing.