[YodasLuke]

I do not consider myself very flexible. Here are are a couple of my pics. 6 iron stage 3. You can see I have no trouble with the front view "post" (little to much hip slide maybe), BUT down the line, my head moves forward about three inch's. Note: my weight has not moved my hips forward, it is just my upper body lean. YODA, would you define this move per T.G.M.. Any input OR training aids/drills appreciated.

I don't have all the pics or the video, but I'll make some guesstimates. Additionally, I have to agree with Philly about the over-do.
1-L #2: The Post may turn (Pivot) bot does not "sway" or "bob". If you look at our photos side by side, the bill of my cap has turned, where your nose hasn't. Because I don't have the address pics, I don't know if your right hip has cleared to any extent. Instead of worrying about the lack of flexibility or the length of the swing, I would be more concerned with extensor action and allowing the head to turn. Try to keep the head in it's three dimensional space, but allow it to turn.