cross breeding dogs with bird dogs.

my opinion i crossed to a birddog as a project to play with .......i think they will do well .... and may add more speed than what i have .....but far as hunting or nose ....NO ......i look at a birddog as a working dog ....... what i have now will out hunt a birddog ,,,,,,running wildly all over is not what i call hunting its more working ........ takeing a track several hours old and tracking the animal up is hunting ...... or a dog that will loop in a quarter mile or so looking for sign then trailing it up is hunting .....it is gonna take hound type traits for this .... i picked the german shorthair because they seem to trail more on the ground than wind ..... if this works out i am looking for more speed and a dog that is just as eager to come out the box at the end of a long day....also i wanted something that was extremely line bred ....( NO THROW BACKS ) .... i have all the hunt i would want already ........