ScottyNI - hi mate - I am having very similar problems myself and hate it! I am off 5 and so far this year my wedge and short game has been a joke and my long game has been amazing! I am not too worried about putting as greens are not great at this time of year, but duffing wedges is one of the most annoying feelings in golf. I am particularly suffering with my 50-70 yard lob wedges.

I am going to try and solve this by re-reading dave pelz short game bible (which i recommend). Last time i read this a year ago i really improved my wedge game and shot some under par scores. Second I am going to the range to work out exactly what type of swing i am going for. At the moment my wedge swing is half my normal swing and half a pitch shot and you cant play golf with conflicting ideas in your head! Going to find a method that works and stick with it.

One last point that may help. When i am struggling with wedges i go to a safety swing that rarely fails. With a slight open stance and weight slightly forward, ball in middle, I take the club back and cock my wrists. In the downswing I try to keep my wrists cocked right to the finish, almost dragging across the ball. This will produce a slightly faded shot which stops fast - its difficult to hit heavy with this one and in one of golf digest's issues phil mickleson describes this technique well.

Hope some of the above helps

nick