By forehand stance, I mean facing downfield, with your knees, chest, nose all pointing towards the endzone that you are attacking. Then throwing a backhand: right-handers bring the disc to the left side of your body in a backhand grip, and throw.
One advantage is that you don't need to pivot to throw a forehand - you are already in a good stance for a forehand. So the marker has to respect that forehand threat. Additionally it is quicker than pivoting out to a backhand stance before throwing a backhand.
The disadvantages are: you don't release as wide as when you pivot out into backhand stance for a conventional backhand, and you also lose the rotation of your hips and shoulders. Your range is limited to 10 - 20m for most players.
But that is all the range you need for 90% of your throws.
Watch Sockeye use it on almost every pass in this point (at 23mins 50sec), in particular the assist. Then start practising it - it will give you more wrist snap on all your backhands.
