This link was just posted on the Disc Golf Answer Man FB page. It was a 9 year old's science project using one disc with varying plastic types to determine distance. She even measured parting line height.
http://www.discgolfanswerman.com/di...ins-flight-of-disc-golf-discs-better-than-you
http://www.discgolfanswerman.com/di...ins-flight-of-disc-golf-discs-better-than-you