Weight forward/head behind ball

[SoundandFury]

Been having a bit of trouble with this for the last week.  Worked hard over the last month to get closer to 90% of weight forward at impact (was probably around 75%ish before I made it my focus) by "feeling" less of a weight shift/more centered pivot on the takeaway, and had for a while had fantastic results.  However, for the last week I started seeing a hook creep into my ball flight.  I can feel that I'm moving my center a bit forward on the downswing, which (most likely) causing the current case of the lefts.

Any drills/thoughts on how to get a solid, weight all the way forward impact position while keeping the upper body centered, or slightly behind with driver/3 wood?

[iacas]

Any drills/thoughts on how to get a solid, weight all the way forward impact position while keeping the upper body centered, or slightly behind with driver/3 wood?

Key #2 videos at http://purestrike5sk.com/videos.php or you can look through this thread: .

[SoundandFury]

Key #2 videos at http://purestrike5sk.com/videos.php or you can look through this thread:  ​ .

Thanks Erik!