[birdie_man]

Exactly..."lagging the hosel" at some point.

i.e. possibly opening the face too much on the backswing and not ALLOWING it (you cannot force it or else you will likely try to HIT- remember a Hitter's Angled Hinging- from driving/hitting with the right forearm- OPENS the face MORE....this is important if you're a Swinger) to roll closed and Horizontal Hinge naturally. Keep PULLING, no PUSHING- if you're a swinger. Centrif. Force.

Setteing up for Swinging with startup swivel (clubface opens) then Hitting = no good.

.....or you could be coming off balance somehow....too much weight on heels could tend to keep the face open I think (lagging hosel, possibly).....too much weight on toes = over the top.

Good luck.