Interesting thread. I've shortened mine at the back end of this season as have always had a tendency to overswing. Usually got away with it but ball-striking was bad mid-season and shortening it was a revelation.
Not sure if it's much more accurate generally now (driving much better though) but ball-striking is leagues better with great divots and distance with irons is at least one club longer than it was earlier in the year. Seriously looking forward to the new season.