Check your address, you may be linning up to close to the ball. This alignment is forcing you to pull your hands toward the body unknowingly kicking the head out from the body causing thin contact by a right to left swipe. :idea:
Your entry point sound as though is good generally. :D
Try and keep the agle of the shaft on the same plane as your belt.
keep your back allignment straight and arms straight down. place the entire sole of the club on the sod.
Left arm straight back low and slow, stare at a fixed point 1/2 inch in front of the ball and make a full practice swing. You will strike the ball at the precise punch point lower on the club face. 8)
You may be creating a divot 1/2 inch before the ball by leaning back to far (reverse C) on your swing through. Keep your head in one spot and move your left hip toward the target.
This may be why you are seeing the contact point higher on the face of the club. :evil:
I may be totally off but best of luck and I hope you get it figured out. 8) :lol: :D
Nothing worse that beating yourself up over a bad weekend of golf!!! :cry: :cry: