Please use this page to view your swing and your Cahill Golf School video golf lesson. The V1 golf software when combined with our state of the art high speed video offers an unparalleled view of your swing. Cahill Golf Schools uses this software to view your swing and send you a video to use during your practice sessions. We also keep your swing videos to use a tool for improvement. We can use video to view your swing improvements or go back to a time when you were swinging your best and look at changes.