Lefties only golf tip: One of the issues with using the correct type of swing for 40 to 50 yard pitch shot, is you can pretty much get that ball to go 40 to 50 yards with any sort of technique. You could stand over the golf ball and just flick your hands at it to make you go 40 to 50 yards.
Left Handed Golf Tips: Use The Correct Swing For Golf Pitch Shots (Video)