Official. I've been playing this game since 1988. One of the cheapest forms of great entertainment you can get.
Some charts to help with a Backhand Drive,Forehand Drive Chart,X-Step Chart (Highly reccomend), Backhand Roller Chart ... From Innova discs
Innovas Diagram Coaching the Backhand drive Web Resolution JPG ...The original PDF files are available if you follow my Preceding Pin to Innova
7 Steps to Improve Your Putting in 7 Days - Disc Golf Putting Tips
Disc Golf Baskets Gateway Titan Pro 24, DGA Mach X and the DGA Mach III are the best
Disc Golf and Chuck Norris
10 things you don't know about disc golf, but should. Charlotte Magazine.
Disc Golf Art
Improving your Approach in Disc Golf More