[EdZ]

Could the incorrect directional application of extensor action (i.e. directing it toward the plane line rather than below plane) cause the club to get too flat from start down into release? Although I'm able to go from start up to top staying nicely on plane, I've always fought a tendency to have the club move under-plane from start down to release (a Sergio like motion). I just grabbed a club trying to feel proper extensor action, and I can see that my natural tendency is to direct that stretching direction toward the plane line.

CG

Trace your toe line with your extensor action and monitor where your HANDS are for plane angle. You will notice this will get your plane angle closer to where it should be and not as flat as you describe.

Interesting note - I was watching Lori Kane yesterday on the range at Kingsmill and noted that she was basically having this exact issue (too flat of plane) - and this lead to a small amount of 'round housing' - the only shot she could hit well was a blocked out slight fade or a 'very' solid and strong pull draw.

And all she needed was to get her plane angle up a bit.

What her caddy was showing her was making the problem worse (horizontal swings, very 'round' motion)

Forget about the club - the HANDS are what should be monitored per 5-0.