What is meant by the term "fast lane" w/regard to the dogs? You hear a guy talk about "fast lane dogs" & such. Is it a hard mouthed barnstormer, a "destroyer" or "alligator" type that ends matches in :30 or less? Is it a certain level of elite competition, top kennels, etc.? Is "fast lane dog" contrasted w/"game dog"? I'm just a little confused by the term & any help understanding would be appreciated.