Grrr...I hate this "Extra protein is stored as fat" crap.
Extra protein is stored as fat, IF (and only if) repair requirements are met, carb requirements are met, calories are above maintenance. Any other time extra protein is just converted to glucose and used as energy (the process gluconeogenesis).
In other words, when bulking just eat enough for repair becuase carb and calorie requirements will be met. When cutting eat all the protein you want as long as you don't go above maintenance. Protein should always be your highest macro when cutting (unless on ketogenic diet), IMO...becuase it has the highest thermic effect, speeds the metabolism, it's more filling, blunts insulin, can't be stored as fat, and so on....