One of the inventors appears to be a well respected professional golfer. Additionally, the PowerLine website is pretty informative and includes videos of the product in use. I encourage you to check it out.
This is one of the few golf training products that has made me say “that could actually help my game.” (although I fear that my swing would get me so tangled up that I would have to cut myself loose)
Congratulations PowerLine Golf.
David Dawsey – Watching the Golf Training Product Inventions
PS – the application that just published is related to a patent that issued earlier this year as USPN 7172515 titled “Golf Swing Plane Training Method and Apparatus”