For RPM , height is a variable .
That 's why you might see the bigs with a higher median ( when I ran this study a few years ago , I noticed the same thing -- bigs tended to have a higher median RPM ) .
For RPM , height is a variable and that 's why you might see the bigs with a higher median ( when I ran this study a few years ago , I noticed the same thing -- bigs tended to have a higher median RPM ) .