I have been playing for around two years and have never really looked into trying to add a roller to my game and know little about them. I realize that it takes the right disc to throw one efficiently, but it seems like such a high risk shot. I've definently never thrown one even close to sucessfull even with extremely understable discs, and I have never seen anyone do it either. So I guess my question is this : When do most people use them (for tunnel shots, wide open drives with a couple huge trees in the way, or downhill shots maybe)? I can throw backhand 300ft.-330ft. consistently and am woundering if being able to execute the roller would give me an advantage on some holes. Is it common for a professional to throw say one roller during 18 holes? Thanks for any advice/help