[Thom]

here's what works very well for me:

-hold the club in the right hand
-place the club in its impact position, right forearm on plane, face square to planeline.
-waggle over the ball (hitters waggle)
-take the ball back, right forearm takeaway, feel the pressure on the two middle fingers on the right hand.
-take it back as far as required, max. to the top (shoulder high)
(at the top the clubface feels closed and the shaft might feel as if it's pointing straight up - compared to your old swing)
-reverse the motion on the downswing, feel the pressure on the indexfinger (pp #3), hit the ball with this pressure

make sure you have extensor action from start to follow through....