In a pitcher mix together the Clamato, ½ cup leche de tigre, Worcestershire, Jugo Maggi and hot sauce. Taste and season with a little more leche de tigre and hot sauce if that seems right to you. Cover and refrigerate if not using right away.
Cut the lime in half and rub it around the top of four large (16-ounce) glasses—like a typical pint beer glass. Upend each one into the salt or Tajín to crust it. Fill the glasses half full of ice cubes.
Divide the Clamato mixture between the glasses, then slowly fill each one with beer. Stir to combine and serve right away.