The peice of paper is only as good as the folks that did the study, and the practices that went into the study (thats what dyno/spec sheets are) its called validity, if pred. did the study dont you think its going to come out favorable over every other product out there? (external validity is lacking). Second, the reliability of the study, if joe blow with the same exact testing equipment tested it would he get the same results? This is called reliability (also mixed with replication) The validity and reliability factors coupled with the biased/unbiased nature of the study is what makes a study, this is simply advertisment, there is no reliability, replication by unbiased individuals, or validity....therefore in short, your peice of paper doesnt mean squat. It shows the numbers predator wants you to see...
simple lesson in scientific experimental methods.