The Planemate is an incredible aid. 2 weeks of pretty much daily practice has taken my swing from an over the top, 9 degree out to in path, to being on plane and much more neutral club path, to maybe slightly in to out.
The first few sessions were hard work. Such a dramatic change in path meant my wrists were way out of sync and I hit a bucket of shanks, so be prepared to push through some growing pains. A week later and I'm striking it more consistently than ever.
A happy side-effect is that I'...