Ever wanted a handy dandy guide how how to apply the 20-80 scale? Here ya go pic.twitter.com/tkt0VxAuT9
— Ryan Parker (@RA_Parker) May 11, 2015
Ever wanted a handy dandy guide how how to apply the 20-80 scale? Here ya go pic.twitter.com/tkt0VxAuT9
— Ryan Parker (@RA_Parker) May 11, 2015