Thanks Cliff

Yes, we are only hitting shot shorts at the moment, half swings with a PW and 7i to try and grain in him some feelings. When he;s got it right he's hit his 7i 150 odd yards with a little half swing and is loving it

One thing he is struggling with when learning the pivot is his left knee, it tends to really collapse as he turns, which leads to his hips turning too much and a sway. Weve been looking at the pro vids and he can see how the lower body (knees) stay apart and braced as the shoulders and hips turn

http://www.pgatour.com/swingplex/02/40/24/index.html

Aside from the football between the legs what else could he do (on half swings) to try and ingrain the feeling ok keeping his left knee stable and the gap between his knees as he turns? Right now were working on a back swing trigger which he says is feeling his left knee push out towards the target as he turns his chest back - seems to work quite well for him but im not so sure it isnt a band aid