When tossing the noodles and sauce, add splashes of reserved pasta water if sauce seems too thick.
If lobster tails arrive frozen, thaw them beforehand so they steam evenly in 6 to 8 minutes.
For easier meat removal after steaming, hold tails with a kitchen towel and cut shells down the middle with shears.
During shallot and garlic sauté, melt 2 tablespoons butter over medium to medium-low heat until shallot pieces are tender before adding lobster.
When melting the parmesan into the cream, remove the pan from heat and stir until cheese is mostly melted and smooth.