this dog was a producer. then i had a mediocre hound with a good ped and thats the one they would always pick to breed to and he never produced anything.
The female has just as much to do with traits as the stud, if not more so. The females may not have been compatible with the "grade stud" either. Without breeding both studs to the same female and comparing litters one will never know. That being said, papers show lineage only. Yes, they may state this one or that one was a field champ, but papers allow for research on the ancestors to help determine such things as propensity for certain illnesses, or desire to achieve(as in pursuing game), etc.
Compare this to filling out an application for medical insurance. You may be asked, for example, "Is there a history of heart attacks in your family history"? "Is there a history of diabetes in your family"? The reason for these and other similar questions is to determine your potential risk factor. A history of an illness does not mean you will have it, but rather your potential of getting it. By studying your "pedigree" (family history), a "risk factor" can be assigned. Breeders do the same thing (or should) although without all the expert help that insurance companies have at their disposal.
So, in summation , while papers don't run a rabbit, they can help to determine the best crosses to achieve success in that endeavor.