Pasta & Bacon: Cook the bacon until crispy, crumble, and set aside. Boil the pasta until al dente. Crucial Step: Drain the pasta and rinse thoroughly under cold water until completely cooled to prevent it from soaking up too much dressing immediately.
Whisk Dressing: In a large mixing bowl, whisk together the mayonnaise, sour cream, pickle juice, ranch seasoning, and dill until smooth.
Combine: Add the cooled pasta, crumbled bacon, chopped pickles, and cubed cheddar to the bowl. Toss until everything is evenly coated in the dressing.
Presentation Tip: If you're serving this at a party, save a small handful of the bacon, cheese, and pickles to sprinkle over the top just before serving.
Chill: Cover and refrigerate for at least one hour. This allows the pasta to absorb the flavors and the dressing to set.
Serve: Give it one final toss before serving cold.