Since the arrival of the sleek Noo Bloo Starship (NBS1701-B), travel options have become more plentiful and complex. However, sometimes Scotty can't get the warp engines up to speed in the old tunnel and Sulu's navigational skills aren't honed finely enough for the new model.
Please bear with me if I visit at an inconvenient time. A Captain's life is ever-challenging.
Earl Grey, hot.
Make it so.